Question

After a long time of the switch being closed, and the circuit reaching a steady state, what is the total current in the circuit?

• A. $3.0A$
• B. $1.0A$
• C. $0.4A$
• D. $0.2A$

Answer 1

The correct option is C $0.4A$

No current flows through the capacitor because the capacitor gets fully charged after the switch has been closed for a long time.

Thus current through the circuit $I=\frac{10}{5+20}=0.4$ $A$