capacitors

Question 1

capacitance

Answer 1

the amount of charge stored per one volt

Question 2

farad

Answer 2

coulomb per volt

Question 3

what is the area under a pd against charge graph equal to?

Answer 3

the energy stored by a capacitor. W=1/2QV

Question 4

time constant

Answer 4

time for the charge on a capacitor to fall by a factor of e

Question 5

explain the pattern of decay by a capacitor

Answer 5

exponential decay which has a constant ratio property

Question 6

3 uses of capacitors

Answer 6

1. applications such as flash photography
2. lasers used in nuclear fusion
3. back up power supplies for computer