EASY
AS and A Level
IMPORTANT
Earn 100
A capacitor has a potential difference of across its plates and stores of energy. Which row in the table gives the capacitance of the capacitor and the charge on its plates?
Capacitance / µF
Charge / mC
A
500
3.0
B
500
18
C
3000
3.0
D
3000
18
Important Questions on Capacitance
EASY
AS and A Level
IMPORTANT
A capacitor is connected across the terminals of a battery of e.m.f. . Calculate the charge on the plates of the capacitor.
EASY
AS and A Level
IMPORTANT
Calculate the p.d. across the terminals of a capacitor when it has a charge of on its plates.
EASY
AS and A Level
IMPORTANT
Calculate the capacitance of a capacitor if it stores a charge of when there is a potential difference of across its plates.
EASY
AS and A Level
IMPORTANT
Calculate the energy stored on a capacitor if it stores of charge when there is a potential difference of across it.
EASY
AS and A Level
IMPORTANT
A capacitor has a p.d. of across its terminals. Calculate the charge stored on the capacitor.
EASY
AS and A Level
IMPORTANT
A capacitor has a p.d. of across its terminals. It is connected to a resistor and the charge leaks away through the resistor in . Estimate the resistance of the resistor.
MEDIUM
AS and A Level
IMPORTANT
A capacitor has a p.d. of across its terminals. It is connected to a resistor and the charge leaks away through the resistor in . Suggest why the last two quantities can only be estimates
EASY
AS and A Level
IMPORTANT
An electronics engineer is designing a circuit in which a capacitor of capacitance of is to be connected across a potential difference of . He has four capacitors available. Draw a diagram to show how the four capacitors could be used for this purpose.
