Resistance and Multimeters
March 12, 2025 • EPISODE 256
How do we measure electricity? In this episode of Science LIVE, Roger Billings shows how multimeters work to measure voltage, resistance, and ohms. Learn why these tools are important and how they’re used in everyday technology.

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.
Read more about DrB »
About the Roger Billings Scholarship Program »



Memory wire is so amazing!
My daddy had a volt meter like the big yellow one you have. I’m going to see if he will let me try to work with it.
I can’t say how much I love science lives!
I had no idea memory wire could do that
memory wire is so cool
I learned about memory wire and how you can train it in a certain position.
Hello, my name is Jacob. Thank you for informing me about resistors. In my opinion, it’s also really fascinating to me how Steve Jobs was one of the people to take part in the development of the first computer mouse. Anyway, thank you for the knowledge.
Memory wire is used in a lot of cool inventions
I love this episode about daylight savings time but it is so fascinating about it, and when i grow up i am going to change the world!
Does electricity work in space?
Very fun and interesting video.
I can’t wait to be in college!
Electricity is so intriguing!
Can electricity work in space?
I love the mini game where you can mess with multimeters really fun and educational
Electricity is so strange but powerful!
Electricity is interesting but dangerous.
It’s truly amazing how Ohms Law is a straightforward relationship but turns into a gateway to understanding and manipulating the forces that holds our world. Thank you so much for telling us this amazing information.
will electricity work in outer space? Why do we have daylight savings time
So cool!!
How does resistance and multimeters help us humans and what does it improve?
I think electrcity may work in space.
would electricity work in space?
that daylight savings joke was funny
Would electricity work in space?
Tobias and his story about the history of the mouse and research being funded by NASA was very interesting.
Could we make electricity in space?
so cool! thank you!