Question: What is the equivalent resistance of two resistors, 4 Ω and 6 Ω, connected in parallel?

Options:

1. 2.4 Ω
2. 10 Ω
3. 24 Ω
4. 1.5 Ω

Correct Answer: 2.4 Ω

Solution:

1/R_total = 1/R1 + 1/R2 = 1/4 + 1/6 = 5/12, thus R_total = 12/5 Ω = 2.4 Ω.