Potential difference & resistance

Define resistance of a light bulb.

What is the potential difference across 2 points in a circuit?

What is another term for potential difference?

• Voltage

• Current

• Resistance

• Power

What device is used to measure voltage in a circuit?

• Ammeter

• Voltmeter

• Ohmmeter

• Thermometer

What role does resistance play in devices like light bulbs and heaters?

• It increases the flow of electricity

• It decreases the flow of electricity

• It has no effect on the flow of electricity

• It stores electricity