The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?
the energy stored in the capacitor quadruples its original value.
the energy stored in the capacitor doubles its original value.
the energy stored in the capacitor is decreased to one-fourth of its original value.
the energy stored in the capacitor remains constant.
the energy stored in the capacitor is decreased to one-half of its original value.