Question

Two resistors 2 Ω and 4 Ω are combined in parallel. If this combination is connected to a battery of 16 𝑉, the maximum current that can be drawn from the battery is ________ 𝐴 (rounded off to the nearest integer).

Answer 1

Correct Answer: 12

The total resistance \(R_{total}\) of the parallel combination is:

\( \frac{1}{R_{total}} = \frac{1}{2} + \frac{1}{4} = \frac{3}{4} \),

so \(R_{total} = \frac{4}{3} \Omega\). Using Ohm’s law:

\( I = \frac{V}{R_{total}} = \frac{16}{\frac{4}{3}} = 12 \text{ A} \)