Ohm’s Law Extra Practice
Directions: Solve these DC circuit problems.
Remember Ohm’s law, V = IR.
Use correct units for your answers.
1. An 8.0-V circuit has 5.7 A flowing. What is the total resistance?
2. What is the voltage needed to produce an 11-A current flow through a 15-Ω resistor?
3. How much current is flowing through a 2-Ω resistor being driven by a 42-V source?
4. A 50-Ω resistor is used in a circuit drawing 0.2 A. What is the voltage drop across
the resistor?
5. What is the resistance of a motor drawing 4.6 A from a 12-V source?