Question

In the circuit shown in figure the capacitors are initially uncharged. The current through resistor PQ just after closing the switch is

• A. 2 A from P to Q
• B. 2 A from Q to P
• C. 6 A from P to Q
• D. zero

Answer 1

Answer: (D)

zero

As the capacitors are initially uncharged so their equivalent resistance is zero. Thus when switch is opened, the whole current will pass through the capacitors and they charging. Therefore no current pass through any resistors initially just after closed the switch. Thus,the current through resistor PQ is zero.