Question

What is the power in the given circuit?

• A. 3.6 W
• B. 35 W
• C. 175W
• D. 245W

Answer 1

The correct option is B 35 W

I=$\frac{V}{R}$
R=$\frac{V}{I}$
R=$\frac{7}{5}$=1.4
$P=I^{\ast }{I}^{\ast }R$
$P=5^{\ast }{5}^{\ast }\left(1.4\right)$
$=35W$