Class 12 NEET Physics Current Electricity Questions Part 1

In the given circuit 6Ω and 3Ω are in parallel, and hence its equivalent resistance is given by

1

Rp

=

1

6

+

1

3

or Rp=2Ω
The equivalent circuit diagram is given in figure. Total current in thecircuit,I=

18

2+4

=3 A
Power in the circuit =VI=18×3=54 watt.