Question

The current i in the circuit will be

• A. $\frac{1}{45}$ ampere
• B. $\frac{1}{15}$ ampere
• C. $\frac{1}{10}$ ampere
• D. $\frac{1}{5}$ ampere

Answer 1

The correct option is C $\frac{1}{10}$ ampere

$R_{equivalent}=\frac{(30+30)30}{(30+30)+30}=\frac{60\times 30}{90}=20\Omega$
$\therefore i=\frac{V}{R}=\frac{2}{20}=\frac{1}{100}$ ampere