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 After being disconnected from the battery, inserting a dielectric with K will increase V. A: TrueOB: False With the capacitor connected to the battery, increasing d increases C. A: TrueOB: False With the capacitor connected to the battery, inserting a dielectric with k will decrease C A: TrueB: False After being disconnected from the battery, increasing d increases V. With the capacitor connected to the battery, decreasing d increases U With the capacitor connected to the battery, inserting a dielectric with K will decrease U A: True B: False A: TrueB: False A: TrueB: False

Explanation / Answer

1. False (Since Electric Field decreases, hence V also decreases)

2. False (Capacitance decreases with increasing d)

3. False (Inserting dielectric, increases the Capacitance K times)

4. True ( since Electric field is constant, therefore V = E x d, hence V increses)

5. True (Since Capacitance increases)

6. False (Since Capacitance increases, hence U increses)

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