Electrical Power and Capacitors

What is the power used by the light bulb when the voltage is 1.42 V and the current is 0.09 A?

• 0.09 Watts

• 1.42 Watts

• 0.13 Watts

• 1.51 Watts

If a circuit has a voltage of 2.85 V and a current of 0.13 A, what is the power?

• 0.13 Watts

• 2.85 Watts

• 0.37 Watts

• 2.98 Watts

What is the main purpose of a capacitor in an electrical circuit?

• To generate electricity

• To measure voltage

• To store energy

• To block current

What happens to the time a light bulb stays lit when more bulbs are added to a circuit with a capacitor?

• The time increases

• The time decreases

• The time stays the same

• The bulb does not light up