Use the stepbystep method to find i0 1700 ms in the circuit

Use the step-by-step method to find i_0 (1700 ms) in the circuit in the figure below. mA the tolerance is +/-2%

Solution

When t=1700 ms, capacitor reaches its steady state and hence it acts as a open circuit. So current through 6K ohm resistor can be found using current dividend rule as follows

Io= (12/(12+6))*12 = 8 mA