a parallel plate capacitor has plates of area a the plates are initial
Question
A parallel-plate capacitor has plates of area A. The plates are initially separated by a distance d, but this distance can be
varied. The capacitor is connected to a battery.
Part A
What should the plate separation be if you want to halve the capacitance.
ANSWER:
√2d
d/√2
d/2
2d
d
Part B
What should the plate separation be if you want to halve the charge stored?
ANSWER:
O d
O d/2
O d/√2
O 2d
O √2d
Part C
What should the plate separation be if you want to halve the energy stored?
ANSWER:
O d/2
O 2d
O d
O √2d
O d/√2
Part D
What should the plate separation be if you want to halve the energy density?
ANSWER:
O d/2
O d/ √2
O 2d
O √2d
O d
