Ohm’s Law

March 05, 2025  •  EPISODE 255

What is Ohm’s Law, and how does it work? In this Science LIVE episode, Roger Billings simplifies it for students! Explore electricity basics as he explains the connection between voltage, current, and resistance with real-world examples and practical tips.

About DrB

Dr. Roger Billings is a visionary innovator whose work has touched the lives of millions of students and transformed the landscape of education. Widely known as “DrB” to the countless kids who benefit from his groundbreaking Acellus learning system, Dr. Billings has dedicated his life to advancing education through technology. As part of DrB’s lifelong commitment to supporting education, Science LIVE was launched as a way to “give back” by mentoring students in conjunction with the Roger Billings Scholarship Program.


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538 Comments

  1. Tyler

    Ohms law is fun to learn about

    Reply
  2. Luke

    That’s so cool that we can run cars on something that occurs on earth naturally rather than gas or electricity.

    Reply
  3. Diangelo

    This lecture lined up perfectly with my physics lesson! It really helped me! thank you!

    Reply
  4. Dpreston

    Appreciate the visuals to help understand Ohm’s Law!

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  5. R

    I enjoyed watching the fun cartoon at the end ,my fav Mr Billings and Miss Paget made science easy to understand.

    Reply
  6. River

    i loved learning about ohms law

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  7. Leeland

    ohms law is so interesting and cool to learn about

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  8. Zander

    I loved learning about Ohm’s Law!

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  9. Ryanna

    I never knew how voltages worked, this explanation was in depth yet also easy to understand

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  10. Caleb

    Ohm’s law is very intresting to learn about.

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  11. Catelyn

    Ohms law is so cool!!

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  12. Lamar

    I love Ohm’s law I use it everyday!

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  13. Nola

    Ohm’s law was really cool to learn about!

    Reply
  14. Gabriella

    Ohms Law is a very interesting concept.

    Reply
  15. Maya

    Ohm’s Law is so fascinating!

    Reply
  16. Kaitlyn

    i have never learned about Ohm’s Law, this gave me a deep insight on the law and the functions of electricity.

    Reply
  17. Josie

    I loved learning about Ohm’s Law

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  18. Carson

    I found Ohms law to be very interesting how everything worked together to form a electrical circuit.

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  19. Preston

    Thank you for teaching me about Ohm’s law!

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  20. Bryce

    I love Ohm’s Law.

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  21. Nylyia

    Thank you for teaching me about Ohm’s law!!

    Reply
  22. Muhsin

    The old mouse design is really classic

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  23. Erryn

    Love the dad jokes!!

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  24. Mubeen

    Ohm’s Law is amazing.

    Reply
  25. Zachary

    I think power is amazing. I love having power so I can use my phone.

    Reply
  26. Charlie

    i love electricity!

    Reply
  27. Walter

    this was so cool!

    Reply
  28. Brayden

    Ohms law was so fun to learn

    Reply
  29. Pacin

    Nowadays, the modern lithium iron battery is much more safer and more reliable than before.

    Reply
  30. Kidus

    Could Ohm’s Law ever break down under extreme conditions?

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  31. Jennifer

    This helped me to understand ohm’s law. Thank you!

    Reply
  32. Minerva

    I personally think the old mouse design looked really cool!

    Reply
  33. Petra

    Amazing episode!!! Thank you all.❤️

    Reply
  34. Audrey

    This was so fun to learn about!

    Reply
  35. Carlee

    I think it’s so fascinating that people learned these things with no background knowledge!

    Reply
  36. Marina

    I definitely understand Ohm’s Law better now, and science is less intimidating with these Science Live lectures.

    Reply
  37. Lillian

    I think that the water pumps were cool that we talked about.

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  38. Zen

    Ohm’s Law is really cool because it shows how something as seemingly inconsistent as electricity actually has formulas to make it predictable and controllable! Its like how everything reveals a pattern if you take the time to look really deep into it.

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  39. Lillian

    To start out with, I love learning about water pumps. Firstly the reason why I like learning about water pumps is because the pumps are the reason why a lot of people get water like me that is how I get water to live. Secondly, water pumps are the science behind the pump and the story of how it was created is always my favorite part of everything in the world is the story and engineering that goes with that item. In conclusion, that is why I love pumps because it is a machine with a big story to tell.

    Reply
  40. Allison

    Never knew about Ohms law. I’ve never really thought about electricity much… because it’s so easy to just flip on the lights with one switch. But, I learned there is so much more to it.

    Reply
  41. Selah

    Can the elections get even faster using a different method of Ohm’s law?

    Reply
  42. Zen

    Really cool how a law about something so ingrained in our everyday lives can be overlooked by so many people!

    Reply
  43. Raelynn

    I love learning!

    Reply
  44. Ileigh

    Are you able to make a chocolate bar taste sour?

    Reply
  45. Mallory

    Acellus is a great learning opportunity!

    Reply
  46. Elias

    I’m learning alot!

    Reply
  47. Garron

    It’s neat how the lithium battery progressed in size and safety through the years going from huge battery packs that could easily catch fire to a pack small enough to fit in your pocket safely. I also enjoyed learning about Ohm’s Law, although the equations for figuring the volts and amps could get quite complex depending on the job at hand.

    Reply
  48. Alivia

    I love Acellus gold, especially with the way you can buy things with your coins! I think it’s cool and very motivational to work and do better, to get more coins and help your grades. this makes it more fun and exciting to learn!

    Reply
  49. Daphne

    I watched this with my brother Dane I learned a lot!

    Reply
  50. Mckinzie

    Electricity is so cool to learn about!

    Reply
  51. Bryce

    Been going through the electronics unit, so it’s cool seeing everything after having just learnt about all of this.

    Reply
  52. Payton

    I wonder who keeps coming up with all the ideas for Science Live every week! So interesting

    Reply
  53. Allegra

    Wow! The world is so advanced, it’s cool to learn about the effect of electricity and how far it’s taken us.

    Reply
  54. Haliakealohaokawaianuhea

    I love r-51 he’s so funny and helpful, he’s my favorite person, and DR. B is very helpful and taught me so much things these past days, Pajet helped me feel again, and help others feel too, Ohm’s law helped me learn so much more about batteries and how it was created, Ohm’s law is much more new to me but when I watched this video, I learned so so much more about ohm’s law and its formula, Thank you Dr. B and Lady Pajet for helping me learn so much more, You guys are the best and thank you for teaching me so much these past weeks.

    Reply
  55. Bella

    i like how he teaches it

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  56. Leila

    Electricity is fun

    Reply
  57. Charla

    I definitely love learning about Ohms law!

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  58. Ava

    wow! so cool!

    Reply
  59. Morgan

    This video was very fun to watch.

    Reply
  60. Symphony

    I love acellus it’s such a great program it’s awsome how funny and smart and kind yall are!

    Reply
  61. Jezabella

    That’s so cool how magic and science can almost seem the same. Specially when mixing things together creating a reaction.

    Reply
  62. Cameron

    This is my first time ever hearing about the ohm’s law and it is very interesting

    Reply
  63. Angel

    I’ve learned a lot from Acellus!

    Reply
  64. Qadriyyah

    roger billings is so funny
    pajet on one side and science live on the other lol

    Reply
  65. Tiffani

    Ohms Law is very fascinating!

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  66. Lola

    I didn’t realize how there were so many different resisters

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  67. Derek

    It’s cool to learn how scientist start with something dangerous, like the first version of the lithium battery, and fine tune it until it’s small enough and safe enough to carry in your pocket every day. Ohm’s Law is very interesting as well. The way Dr. Billings explained it seems simple, however, I can see how the math could get very complex and why a good knowledge of how electricity works is key when working with it.

    Reply
  68. Benaiah

    So Ohm’s Law is about the voltage current and the resistance. I never knew that.

    Reply
  69. Zubaida

    I appreciate how Dr. Roger explains electrical power visually, I comprehend well! Great podcast.

    Reply
  70. Jade

    You just blew my mind again

    Reply
  71. Seth

    Learning about ohm’s law is very educational.

    Reply
  72. Shaun

    I definitely have a better understanding of Ohm’s Law now, and I like the pun. Dad jokes make science better.

    Reply
  73. Sam

    Hearing about the electricity is really cool

    Reply
  74. Michaela

    I love acellus it’s such a great program it’s awsome how funny and smart and kind yall are!

    Reply
  75. Calogero

    I love electricity!

    Reply
  76. Taylor

    Another nice video, I didn’t even know there was a such thing as Ohm’s Law but now I understand it and its implications.

    Reply
  77. Taylor

    these videos are always so educational and fun

    Reply
  78. Michaela

    I think the old mouse design looked really cool!

    Reply
  79. Tristan

    R-51 Is amazing, my favorite character. also, heres a joke, if Athletes get Athletes foot, what do elves get? Mistle-toes

    Reply
  80. Harley

    I enjoyed learning about the camera!

    Reply
  81. Chase

    It was very interesting learning about how electricity flows through a conducter whcih creates voltage and the voltage is broke down into resistance.

    Reply
  82. Bakari

    I love your lives! You are so funny and I’m glad I get to learn more about science and learn more about the WORLD! Thank you for all the information Mr. Billings

    Reply
  83. Julian

    Electricity’s so cool!

    Reply
  84. Benjamin

    I enjoyed this episode! I especially liked the breakdown and project of home’s law. Thank you Dr. Rodgers.

    Reply
  85. Fiona

    So glad that I have the chance to learn all of the things Acellus has to offer!

    Reply
  86. Lucas

    Great video love how many different things dr Billings has tucked away in his mind

    Reply
  87. Brianna

    I enjoyed learning about the mouse!

    Reply
  88. Gunnar

    I love learning about electricity!!!

    Reply
  89. Nehemiah

    Ohm’s Law defines voltage (V) across a conductor as a function of current (I) passing through it and its resistance (R): V = I × R. Ohm’s Law defines voltage, current, and resistance in a circuit. Voltage will increase the current, yet increased resistance lowers the flow of current.

    Reply
  90. Coralynn

    Cool, I love listening to Dr.B

    Reply
  91. Sofia

    Electricity is so amazing! I didnt know it came in so many different forms. I only thought about how we use electricity in my house.

    Reply
  92. Henry

    This was so interesting to learn about!

    Reply
  93. Kylie

    so glad I can learn about these things !

    Reply
  94. Petra

    Dr.Rogers, Thank You for amazing peace of information that You always share with us.
    Blessings

    Reply
  95. Karen

    I admire the way Dr. Roger Billings explains Physics in such common sense.

    Reply
  96. Brielle

    I like these science live video’s Dr Roger Billings make you understand it better Showing us how they play a role in our daily life including showing us examples.

    Reply
  97. Varvara

    I enjoyed it, it was awesome!

    Reply
  98. Bianca

    I’ve always been fascinated with electricity!

    Reply
  99. Chunn

    I learned a lot from this episode about Ohm’s Law. I’ve always enjoyed learning new things so thank you Dr. Rogers!

    Reply
  100. Lilly

    love the jokes!

    Reply
  101. Daniel

    This episode was really interesting, and I really enjoyed watching it. Thank you.

    Reply
  102. Sullivan

    Interesting- and made me laugh

    Reply
  103. Taylor

    I’ve learned so much today!

    Reply
  104. Brandon

    Dr Rodger has got a great sense of humor

    Reply
  105. Michael

    I learned connections from the electric current and electrical stores in the batteries. I enjoyed the funny video that explained science more.

    Reply
  106. Brianna

    I enjoyed learning how the mouse worked

    Reply
  107. Zola

    This is a fantastic video!!!

    Reply
  108. Jackson

    Wow! I had no idea about this!

    Reply
  109. Brianna

    I enjoyed learning about OHM’s law

    Reply
  110. Eldad

    Wow the way Mr. billings explained the connection between voltage, current and resistance was amazing, and I had fun learning about Ohm’s Law.

    Reply
  111. Cason

    Dr Rogers is so funny! Ohm’s law is really interesting.

    Reply
  112. Jadan

    i like R-51. R-51 is good.

    Reply
  113. Lydia

    enjoyed learning about Ohm’s Law

    Reply
  114. Amy

    This video helped me understand Ohm’s law so mush better

    Reply
  115. Kyndal

    Ohm’s law it the most intresting one to me.

    Reply
  116. Reese

    Learning about ohms was fun!

    Reply
  117. Travis

    I always love learning about ohm’s law

    Reply
  118. Autumn

    i learned alot of new things, and i enjoyed it!

    Reply
  119. Skyler

    I never really took the time to understand what Ohm’s Law was. Thanks!

    Reply
  120. Sophie

    Thank you for taking the time to teach everyone about Ohm’s law!! I’ve always enjoyed science the most.

    Reply
  121. Samuel

    Why does a longer wire have more resistance?

    Reply
  122. Brianna

    This is so fascinating!

    Reply
  123. Amelia

    I’ve never heard of Ohms Law before today

    Reply
  124. Kennedy

    Great and important tips, good episode.

    Reply
  125. Asher

    I’d never heard of Ohms Law before today.

    Reply
  126. Kirsten

    I am only 6 years old but this is cool 🙂

    Reply
  127. Paytin

    I learned so much

    Reply
  128. Landree

    Love the jokes at the beginning. This was interesting. I see how this can be used in my every day life.

    Reply
  129. Oliver

    Lol always the r51 segment 🤣

    Reply
  130. Lakin

    I love that this is very informative and it really makes science fun and easy to understand for me

    Reply
  131. Bella

    Why is ohm’s law so important?

    Reply
  132. Landon

    I enjoyed learning about Ohm’s law thank you Dr rogers!

    Reply
  133. Bentlee

    The joke at the start is always something I like and I also learned things about Ohm’s law that I didn’t know before.

    Reply
  134. Sydnee

    I learned some new terms as well as information I didn’t know about Ohm’s law.

    Reply
  135. Taylor

    The home law can mean a lot of things but the ohm law how does it work and what we can describe is that we have to get a long and understand it more

    Reply
  136. Lavi

    I definitely learned a lot from this episode! Thank you Dr. Rogers!

    Reply
  137. Vivi

    What a great lesson!!!

    Reply
  138. Xander

    i learned a ton of new words, and had a few laughs. made my day !

    Reply
  139. Angel

    My mom says ohm when she meditates. The drawing of the electricity flow helped me understand better.

    Reply
  140. Nevaeh

    This was a great lesson! Glad to re-learn ohms law.

    Reply
  141. Amora

    Thank you for the cool video, I enjoyed learning about OHM’s Law. It was very interesting

    Reply
  142. Kinsley

    Dr.B is my favorite instructor! i really enjoy watching and listening to him. Great video!

    Reply
  143. Atticus

    I really enjoyed learning about Ohm’s Law! Thank you Dr. Rogers!

    Reply
  144. Chris

    Another great explanation of electricity. When Dr. Rogers breaks it down, it is a lot easier to understand.

    Reply
  145. Jewell

    I have never heard of Ohm’s law before. It’s so interesting. I learned a lot.

    Reply
  146. Logan

    Ohm’s formula will be helpful.

    Reply
  147. Benaiah

    So Ohm’s law is about how much pressure the current with the electrons.

    Reply
  148. James

    Electricity is very complex and interests me a lot.

    Reply
  149. Joseph

    Thank you for teaching us about Ohm’s Law

    Reply
  150. Adelyn

    I enjoyed the ohms law and all the cool things like the battery Roger billings is so funny ! love watching these

    Reply
  151. Isabella

    I love how he starts off with jokes in every episode. I am saving for a hoodie from Acellus and I can’t wait till I reach my goal! John Goodenough was also super smart and had many great ideas with atoms and batteries. I also enjoyed learning about Ohm’s Law and better understanding it. It was very interesting learning how fast a pump can actually pump for. I thought it would take a few hours, but it only takes about 1 minute! I also loved learning new things that I did not know about throughout the whole video.

    Reply
  152. Yocabed

    from Dr. tobias I learned how technology has transformed the world battery’s play a huge role in our day to day life. we have have managed to make it much smaller and affordable.

    Reply
  153. Jeremiah

    I really liked watching r51 create that explosion!

    Reply
  154. Ky

    Ohm’s Law is so cool, I have never heard of it. I love learning so much about science.

    Reply
  155. Victoria

    The explanation on how Ohm’s law really works. This was something that I had been informed of when I was in a public school but this is one of the best explanations I have gotten on Ohm’s law. Thank you!

    Reply
  156. Owen

    I learned a ton about how electricity works and now think of things differently.

    Reply
  157. Shannon

    Never ever heard of Ohm’s Law before, learned something new today 🙂

    Reply
  158. Khloe

    Haha I think Dr Roger’s is SO funny!!

    Reply
  159. Timothy

    This is a fun topic to learn about! And Acellus makes it easy and fun!

    Reply
  160. Jordan

    I think it was interesting how you compared electricity and how it flows to how a water pump works.

    Reply
  161. Karly

    It really is amazing how small batteries are today compared to the first ones years ago.

    Reply
  162. Darrell

    That was an interesting lesson, I learned things I didnt know. I like your jokes to.

    Reply
  163. Ian

    Is the formula of Ohms Law V=IR??

    Reply
  164. Tiana

    Great lesson! Thank you

    Reply
  165. Alisi

    I learned so much about the Ohm’s law, thank you for teaching us in an easy way.

    Reply
  166. London

    I have never heard of Ohm’s law before. Thank you for teaching us something new!

    Reply
  167. Ally

    I’ve heard of Ohm’s law but I never knew what it was until now.

    Reply
  168. Jahaziel

    I learned a lot from this episode about Ohm’s Law. I look forward to new episodes

    Reply
  169. Gabrien

    One thing I like about this video is how they show the diagram and explain it in detail. Thank you, I learned a lot from this episode about Ohm’s Law.

    Reply
  170. Abubakr

    It was really interesting to learn about Ohms law!

    Reply
  171. Zavien

    One thing I really enjoy is, all the interesting things that have evolved over the years and how it changed over time.

    Reply
  172. Kyler

    What is the relationship between voltage, current, and resistance?

    Reply
  173. Benjamin

    Voltage makes electricity flow.

    Reply
  174. Zahavi

    This is my first time learning about Ohm’s Law! Happy to learn something new.

    Reply
  175. Grace

    I always knew that electricity was complicated and had a lot of factors to it, but all of the information about current and voltage was very fascinating!

    Reply

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