The reading of the voltmeter in this circuit is
Explanation
Correct option is A)
Simplified circuit is as drawn below.
\(R_{\text {eq }}=300\)
\(\mathrm{I}=\frac{\mathrm{V}}{\mathrm{R}_{\text {eq }}}=\frac{30}{300}=0.1 \mathrm{~A}\)
\(\text { Reading of voltmeter } =\mathrm{I} \times \mathrm{R}=0.1 \times 125 \\=12.5 \mathrm{~V}\)