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Mini-Quiz: Ohm's Law for Simple Electrical Circuits

by Ron Kurtus (revised 6 December 2013)

Take this Mini-Quiz to check your understanding of the lesson material.

1. What does the letter I stand for in Ohm's Law?




2. For what is Ohm's Law used?

To calculate the third unknown, if you know the other two parameters

To determine if it is an AC or DC circuit

To give Ohm credit for his good work

3. What can prevent Ohm's Law from applying in an AC circuit?

Ohm's Law always applies to any electrical circuit

Using bare wires

If there is a capacitor or inductor in the circuit

If you got all three correct, you are on your way to becoming a Champion in Physics. If you had problems, you had better look over the material again.

Be determined to do your best

Resources and references

Ron Kurtus' Credentials


A Little History About Ohm - Short history

Ohm's Law - Explanation, including an Ohm's Law calculator

Basic Electrical Laws - Includes circuit theory

Electrical Circuit Formulae - High level equations for problem solving

DC and AC Electricity Resources

Physics Resources


Teach Yourself Electricity and Electronics by Stan Gibilisco; McGraw-Hill; (2001) $34.95 - Guide for professionals, hobbyists and technicians desiring to learn AC and DC circuits

Questions and comments

Do you have any questions, comments, or opinions on this subject? If so, send an email with your feedback. I will try to get back to you as soon as possible.


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