How do you solve for different variables using V = IR?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
You can rearrange Ohm's Law to solve for any variable:
- To find voltage: V = I × R (multiply current by resistance)
- To find current: I = V ÷ R (divide voltage by resistance)
- To find resistance: R = V ÷ I (divide voltage by current)
Simply identify which two values you know and use the appropriate formula to find the third.
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