To store 80 mJ of energy in a 100 μF capacitor, what voltage is necessary?

Question

Quizplus · Accepted Answer

The formula for storing energy in a capacitor is given by:
E = 1/2 * C * V^2 
where E is the stored energy in joules, C is the capacitance in farads, and V is the voltage across the capacitor in volts.

Rearranging the formula to find V, we get:
V = sqrt(2E/C)

Substituting the values given, we get:
V = sqrt(2*0.080/0.0001) = 40 V

Therefore, the answer is D) 40 V.

To Store 80 MJ of Energy in a 100 μF