Single Answer MCQ
Q-00004510
A circuit has three resistors: R1 = 4 Ω, R2 = 8 Ω, and R3 = 12 Ω in parallel. What is the equivalent resistance?
1
1.09 Ω
2
2.15 Ω
3
2 Ω
4
4 Ω
Answer and Solution
Answer
B. 2.15 Ω
Solution:
1/R_eq = 1/R1 + 1/R2 + 1/R3 = 1/4 + 1/8 + 1/12. Calculate the reciprocal for equivalent resistance, which is approximately 2.15 Ω.
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