A capacitor of capacitance C holds a charge Q when the potential difference across the plates is V.If the charge Q on the plates is doubled to 2Q,
A)the capacitance becomes (1/2)V.
B)the capacitance becomes 2C.
C)the potential changes to (1/2)V.
D)the potential changes to 2V.
E)the potential does not change.

Question

Quizplus · Accepted Answer

The potential changes to 2V because the relationship between charge (Q), capacitance (C), and potential difference (V) is given by Q = CV. Doubling the charge while keeping the capacitance constant doubles the potential difference.

A Capacitor of Capacitance C Holds a Charge Q When