Question

In the given circuit voltmeter shows a reading of 4 V, then the power developed across R resistance will be:

• A. 15 m W
• B. 14 m W
• C. 12 m W
• D. 10 m W

Answer 1

The correct option is C 12 m W

$6=I\times 2000$
$I=\frac{6}{2000}=3mA$
$P=VI=4\times 3mW=12mW$