Lesson: Ohm's Law
In this lesson, we will learn how to define voltage, current, and resistance and use Ohm's law to calculate these values in simple electrical circuits.
Sample Question Videos
Worksheet: 6 Questions • 3 Videos
Which of the following is the best definition of electrical current, as measured in amperes?
A voltage drop of 3.412 V is measured across a resistance of 10.51 Ω. Calculate the current in the resistor.
If a redox couple is at equilibrium in an electrochemical cell, which of the following statements about the current and potential is most accurate?