Question

In the circuit, the potential difference across $PQ$ will be nearest to

• A. 9.6 V
• B. 6.6 V
• C. 4.8 V
• D. 3.2 V

Answer 1

Answer: (D)

3.2 V

Answer 2

Potential difference across $PQ$ i.e., potential difference across the resistance of $20 \,\Omega$ which is $V = i \times 20$
$i =\frac{48}{100+100+80+20}$
$=0.16\, A$
$V =0.16 \times 20=3.2\, V$