Electric Circuits Quiz

What is the unit of voltage in a circuit?

• Amps (A)

• Ohms (Ω)

• Volts (V)

• Watts (W)

What does the symbol 'I' represent in Ohm's law?

• Voltage

• Current

• Resistance

• Power

According to Ohm's law, how is resistance (R) calculated?

• Voltage × Current

• Voltage / Current

• Current / Voltage

• Current × Resistance

What is the force to push electrons around a circuit called?

• Current

• Resistance

• Voltage

• Power

Which formula represents the calculation of voltage in a circuit?

• Voltage = Current × Resistance

• Voltage = Resistance / Current

• Voltage = Current / Resistance

• Voltage = Resistance × Current

What is the current in a circuit with a 9-volt battery and a 470-ohm resistor?

• 0.0191 A

• 0.02 A

• 0.018 A

• 0.021 A

What is the voltage in a circuit with a current of 0.022 amps and a 560-ohm resistor?

• 12.32 V

• 12.54 V

• 12.10 V

• 12.76 V

The next circuit has a current of 0.0154 amps. What is the resistance?

• 0.092 ohms

• 3.9 ohms

• 389 ohms

• 0.39 ohms