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If the plates of a charged parallel plate capacitor are pulled away from each other A. capacitance increases B. energy increases C. voltage increases D. voltage decreases

If the plates of a charged parallel plate capacitor are pulled away from each other
A. capacitance increases
B. energy increases
C. voltage increases
D. voltage decreases

Grade:

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
Capacitance of a parallel plate capacitor
C=ε0AdC=ε0Ad
A parallel plate capacitor is charged (battery is disconnected) then the plates are pulled apart, the capacitance decreases while the charge remains the same
∵Potentialdifference=ChargeCapacitance∵Potentialdifference=ChargeCapacitance
∴∴potential difference increases
Vikas TU
14149 Points
4 years ago
Assuming that the capacitor is connected across a constant voltage source keeping V constant, increasing the distance between the parallel plates will decrease C. at a constant V, an increase in C will decrease the charge Q that the conductors can hold.

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