A parallel plate capacitor with plate separation d is connected to a battery. Th
ID: 1527460 • Letter: A
Question
A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V. (C is the capacitance and U is the stored energy.) Answer the following questions regarding the capacitor charged by a battery. For each statement below, select True or False.
After being disconnected from the battery, inserting a dielectric with will increase C.
After being disconnected from the battery, inserting a dielectric with will decrease U.
With the capacitor connected to the battery, decreasing d increases U.
With the capacitor connected to the battery, decreasing d decreases Q.
With the capacitor connected to the battery, decreasing d increases C.
After being disconnected from the battery, inserting a dielectric with will increase V.
Explanation / Answer
true:
when dielectric inserted then c will increase.
energy will decrease.
if d decreases then c will increases.
if d decreases then u increases.
false:
v will increase when dielectric inserted(v/k)
q decreases