EASY
AS and A Level
IMPORTANT
Earn 100

Calculate the energy stored in the capacitor of capacitance 5000pF which is charged to 5.0 V.

Important Questions on Capacitance

EASY
AS and A Level
IMPORTANT

Calculate the energy stored in the capacitor of capacitance 200 μF which is charged to 230 V.

EASY
AS and A Level
IMPORTANT
Which involves more charge, a 100μF capacitor charged to 200 V or a 200μF capacitor charged to 100 V ? Which stores more energy?
EASY
AS and A Level
IMPORTANT

A 10000μF capacitor is charged to 12 V, and then connected across a lamp rated at 12V,36W. Calculate the energy stored by the capacitor.

MEDIUM
AS and A Level
IMPORTANT

A 10000μF Capacitor is charged to 12 V, and then connected across a lamp rated at 12V,36W. Estimate the time the lamp stays fully lit. Assume that energy is dissipated in the lamp at a steady rate.

EASY
AS and A Level
IMPORTANT

In a simple photographic flashgun, a 0.20 F capacitor is charged by a 9.0 V battery. Calculate the charge on and energy stored by the capacitor.

MEDIUM
AS and A Level
IMPORTANT

In a simple photographic flashgun, a 0.20 F capacitor is charged by a 9.0 V battery. It is then discharged in a flash of duration 0.01 s. Calculate the average power dissipated during the flash.

MEDIUM
AS and A Level
IMPORTANT

In a simple photographic flashgun, a 0.20 F capacitor is charged by a 9.0 V battery. It is then discharged in a flash of duration 0.01 s. Calculate the average current in the flash bulb.

MEDIUM
AS and A Level
IMPORTANT

In a simple photographic flashgun, a 0.20 F capacitor is charged by a 9.0 V battery. It is then discharged in a flash of duration 0.01 s. Calculate the approximate resistance of the bulb.