Question

In the following figure, the equivalent resistance between the points $A$ and $B$ in ohm will be :

• A. $1$
• B. $2$
• C. $3$
• D. $9$

Answer 1

The correct option is A $1$

Resistance of each resistor $R=3\Omega$

According to above fig. Resistors are in parallel combination.

$\frac{1}{R_{eq}}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}$

$R_{eq.}=\frac{R}{3}=\frac{3}{3}=1\Omega$