Question

Which of the following combinations should be selected
for better tuning of an L-C-R circuit used for communication?
(a) R = 20 ????, L =1.5 H, C = 35μF
(b) R=25????, L = 2.5 H, C = 45 μF
(c) R =15????, L = 3.5 H, C = 30 μF
(d) R = 25????, L = 1.5 H, C = 45 μF

Answer 1

Answer:

Hi

For tuning an LCR circuit, its selectivity should be high. High selectivity is observed in circuits with high-quality factor. Hence, option (d) is the best combination.