Single Answer MCQ
Q-00040490
If the equivalent resistance of three resistors in series is 30 Ω and the resistors are 5 Ω, 10 Ω, and R3, what is R3?
1
15 Ω
2
20 Ω
3
25 Ω
4
10 Ω
Answer and Solution
Answer
C. 25 Ω
Solution:
R_eq = R1 + R2 + R3 = 30 Ω => 5 Ω + 10 Ω + R3 = 30 Ω => R3 = 30 Ω - 15 Ω = 15 Ω.
Watch Video Solution