posted by Anonymous .
The circuit in the figure below consists of two identical, parallel metal plates connected to identical metal springs, a switch, and a 130-V battery. With the switch open, the plates are uncharged, are separated by a distance d = 7.65 mm, and have a capacitance C = 2.00 µF. When the switch is closed, the distance between the plates decreases by a factor of 0.500.
What is the question???