Activity 2

The potential difference (V) between the plates of the capacitor (C) is charged by the steady

state voltage (E) through a resistor (R) in a power control system is given by the equation

CR dv/dt + V = E

Solve the equation for V given at t = 0 and v=0

Calculate V correct to 3 significate figures when E = 25V, C = 20x 10-6 F, R = 200x 103 ohms

and t = 3 sec