Question

If a resistance $R _ { 2 }$ is connected in parallel with the resistance R in the circuit shown, then possible value of current through R and the possible value of $R _ { 2 }$ will be

• A. $\frac { I } { 3 } , R$
• B.
• C. $\frac { I } { 3 } , 2 R$
• D. $\frac { I } { 2 } , R$

Answer 1

Answer: (D)

$\frac { I } { 2 } , R$

Answer 2

According to the figure, $\left( I - I _ { 1 } \right) R _ { 2 } = I _ { 1 } R$

Only two values satisfying the above relation are $\frac { I } { 2 }$ and R