Engineering Problem.

Question

A 10V power supply is connected in series with a capacitor with C=0.01F and a resistor with R=20Ω. Once the capacitor is fully charged, the current in the circuit will be

Options:

0.5A


0 A


50 A


1 A

Answer 1

If the battery voltage is constant, the current flows only while the capacitor is charging.  Once the capacitor is fully charged, current flow ceases.  The answer should be I = 0 A.