Question

Find the current supplied by the battery in the circuit shown in figure (32-W7).

Answer 1

1 A

Answer 2

The circuit consists of a 3V battery connected to four $12 \Omega$ resistors in parallel. The equivalent resistance $R_{eq}$ is calculated as $\frac{1}{R_{eq}} = \frac{1}{12} + \frac{1}{12} + \frac{1}{12} + \frac{1}{12} = \frac{4}{12} = \frac{1}{3} \Omega$, so $R_{eq} = 3 \Omega$. Using Ohm's Law, $I = \frac{V}{R_{eq}} = \frac{3 \text{ V}}{3 \Omega} = 1$ A.