Question

The value of current $I$ in the given circuit is -

• A. $2\text{A}$
• B. $3\text{A}$
• C. $4\text{A}$
• D. $5\text{A}$

Answer 1

The correct option is A $2\text{A}$

From the above diagram, we can say that points $A$ and $D$ are at the same potential.

Similarly, points $C$ and $B$ are also at the same potential.

Therefore, the above circuit can be redrawn as,

Hence, the equivalent resistance of the circuit is,

$R_{\text{eq}}=\frac{R}{3}=\frac{15}{3}=5\Omega$

Therefore, the current $I$ is,

$I=\frac{10}{5}=2\text{A}$

Hence, option $\left(A\right)$ is the correct answer.