Question

The attached circuit diagram shows connection of 3 resistors. All are connected in parallel . Thus what is the equivalent resistance.

• A. 1 ohm
• B. 4 ohm
• C. 3ohm
• D. 2 ohm

Answer 1

The correct option is A 1 ohm

Equivalent resistance of resistors connected in parallel $\frac{1}{R_{eq}}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}$

$\therefore$ $\frac{1}{R_{eq}}=\frac{1}{2}+\frac{1}{3}+\frac{1}{6}$ $⟹R_{eq}=1$ ohm