Ohm’s Law

Teaching and Learning Resources

Exercise 1: A Simple Ohm’s Law Circuit


  1. 1.Build the circuit as shown using a 10 Ohm resistor and a supply voltage of 6V.


  1. 2.Using Ohm’s Law, calculate what you would expect the current flowing through the resistor to be.


  1. 3.Measure the current actually flowing through the 10 Ohm resistor, does it work out?


  1. 4.Challenge: Replace the 10 Ohms resistor with the “unknown” resistor. Using your circuit and some Ohm’s law, work out what the resistor value must be.