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.

True False  With the capacitor connected to the battery, decreasing d increases C.
True False  With the capacitor connected to the battery, inserting a dielectric with ? will decrease C.
True False  After being disconnected from the battery, increasing d increases U.
True False  After being disconnected from the battery, inserting a dielectric with ? will decrease V.
True False  After being disconnected from the battery, increasing d increases V.
True False  With the capacitor connected to the battery, inserting a dielectric with ? will decrease U.

Explanation / Answer

True ----> With the capacitor connected to the battery, decreasing d increases C.
False ---->With the capacitor connected to the battery, inserting a dielectric with ? will decrease C.
True ----> After being disconnected from the battery, increasing d increases U.
True ---->After being disconnected from the battery, inserting a dielectric with ? will decrease V.
True---->After being disconnected from the battery, increasing d increases V.
True----> With the capacitor connected to the battery, inserting a dielectric with ? will decrease U.

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