Question: What is the total resistance of three resistors of 2 Ω, 3 Ω, and 5 Ω connected in series?

Options:

1. 10 Ω
2. 5 Ω
3. 3 Ω
4. 2 Ω

Correct Answer: 10 Ω

Solution:

In series, R_total = R1 + R2 + R3 = 2 Ω + 3 Ω + 5 Ω = 10 Ω.