STANDARDPhysics-Alternating Current
STANDARD Physics Quality Factor MCQ Question
Type: MCQ-numerical-Medium-Class 12
Which of the following combinations should be selected for better tuning of an L-C-R circuit used for communication?
A
R = 15 Ω, L = 3.5 H, C = 30 μF
B
R = 25 Ω, L = 1.5 H, C = 45 μF
C
R = 20 Ω, L = 1.5 H, C = 35 μF
D
R = 25 Ω, L = 2.5 H, C = 45 μF
Correct Answer
Option A
Detailed Explanation
For tuning an LCR circuit, its selectivity should be high. High selectivity is observed in circuits with high-quality factor. For option (a), Q = 13.67, which is the highest.
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