Exercises: Ohm's Law

Work through each section in order. Show your work for all calculation problems.

Grade 11·20 problems·~30 min·OpenStax Physics (High School)·section·sec-19-1

Work through problems with immediate feedback

Fluency Practice

A resistor has $R = 20\ \Omega$ and carries a current of $I = 0.50\ \text{A}$ . What voltage appears across it?

$10\ \text{V}$

$0.025\ \text{V}$

$40\ \text{V}$

$2.5\ \text{V}$