A parallel plate capacitor with plate separation d is connected to a battery. Th
ID: 1527018 • 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 decrease U.
After being disconnected from the battery, inserting a dielectric with will decrease V.
With the capacitor connected to the battery, increasing d increases C
After being disconnected from the battery, increasing d increases V.
After being disconnected from the battery, inserting a dielectric with will increase C.
With the capacitor connected to the battery, decreasing d increases U.
Explanation / Answer
1 ans
true baseing on energy stored in a capactior =>energy stored in a capacitor reduces to 1/K times
2 ans
true after battery is disconnected the dielectric inserted the voltage reduced to 1/k times
3 ans
false after capacitor connected to battery the cappacitance i9s decreases
4 ans
Ture because the distance is directly proportional to voltage
5 ans
True because afrer inserted the dielectric the capacitance C=Kco
6 ans
true because the energy stored is inversely proportional to distance