Potential difference is measured in:

• Watts

• Joules

• Ohms

• Volts

Current is measured in:

• Coulombs

• Amps

• Ohms

• Volts

The opposition to a flow of current is:

• Resistance

• Repulsion

• Refraction

• Reflection

The rate of flow of charge is:

• Resistance

• Power

• Current

• Potential Difference

The energy per unit charge is:

• Current

• Resistance

• Potential Difference

• Power

As the resistance of a circuit increases, the current will:

• Decrease

• Increase

• Stay the same

Which particles move through a wire to produce a current?

• Atoms

• Protons

• Neutrons

• Electrons

A current of 2A flows through a resistor with a resistance of 10Ω. What is the potential difference across the resistor?

• 5V

• 5J

• 20V

• 20J

A light bulb has a resistance of 7Ω with a potential difference of 21V across it. What is the current flowing through the light bulb?

• 147 A

• 28 A

• 3A

• 30A

A resistor has a potential difference of 10V across it and a current of 2A flowing through it. What is the resistance of the resistor?

• 20Ω

• 5Ω

• 200Ω

• 0.2Ω