the stores of a capacitor charged to 100v, is 1j. capacitance of capacitor
Energy stored in a capacitor is given by 1/2 CV², where C is the capacitance of the capacitor and V is the voltage applied across the capacitor.
Now according to the question:
Voltage V = 100V
Energy stored in capacitor = 1J
Putting in the formula:
1 = 0.5 x C x 100²
=> 2 = C x 10
=> C = 2 x 10^-4
So the capacitance of the capacitor is 2 x 10^-4 F.