With increase in frequency of an A.C. supply, the impedance of an L-C-R series circuit
A. remains constant
B. increases
C. decreases
D. decreases at first, becomes minimum and then increases.
Answer:D
With increase in frequency of an A.C. supply, the impedance of an L-C-R series circuit
A. remains constant B. increases C. decreases D. decreases at first, becomes minimum and then increases.