Parallel-Plate Capacitor: An ideal parallel-plate capacitor consists of two parallel plates of area A separated by a distance d. This capacitor is connected across a battery that maintains a constant potential difference between the plates. If the separation between the plates is now doubled, the magnitude of the charge on the plates will
A. double.
B. quadruple.
C. be cut in half.
D. be cut in fourth.
E. not change.
Answer: C
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