Question

The potential difference between the points A and B is ( in V)

• A. 20
• B. 10
• C. 5
• D. 6

Answer 1

The correct option is A 20

As we know , $I=\frac{V}{R_{eq}}$
$\Rightarrow I=\frac{40}{200+200}=0.1A$

Now potential drop across the $200\Omega$ resistor will be given by,:
$V=I\times R$
$V=0.1\times 200=20$ volts