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If the plates of a charged parallel plate capacitor are pulled away from each otherA. capacitance increasesB. energy increasesC. voltage increasesD. voltage decreases

abhishek singh , 10 Years ago
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Saurabh Koranglekar

Last Activity: 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

Last Activity: 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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