Question: In a circuit with a 12V battery and two resistors in parallel (4 ohms and 6 ohms), what is the total current supplied by the battery?

Options:

1. 3 A
2. 2 A
3. 1 A
4. 4 A

Correct Answer: 3 A

Solution:

First, find the equivalent resistance: 1/R_eq = 1/4 + 1/6 = 5/12, so R_eq = 12/5 = 2.4 ohms. Then, using Ohm\'s law, I = V/R, we have I = 12V / 2.4 ohms = 5 A.