A parallel plate capacitor with plate separation d is connected to a battery. Th

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.

1. True False After being disconnected from the battery, inserting a dielectric with will decrease V.

2. True False  After being disconnected from the battery, decreasing d decreases C.

3. True False  After being disconnected from the battery, decreasing d increases U.

4. True False  With the capacitor connected to the battery, decreasing d decreases Q.

5. True False  With the capacitor connected to the battery, inserting a dielectric with will increase C.

6. True False  After being disconnected from the battery, inserting a dielectric with will increase U.

Explanation / Answer

1. True ( electric field inside the dielectric decreases)

2. False ( decreasing d increases C)

3. True

4. False

5. True

6. False

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