Lesson: Ohm’s Law

In this lesson, we will learn how to use the formula V = IR (Ohm's Law) to work out the values of the potential difference, current, and resistance in simple circuits.

Sample Question Videos

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Worksheet: 20 Questions • 2 Videos

Q1:

Which of the following is the correct unit for electrical resistance?

Q2:

A Ω resistor in a circuit has a current of 100 mA through it. What is the potential difference across the resistor?

Q3:

Which of the following is the correct formula for Ohm’s Law?

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