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An alternating e.m.f. is applied to a se...

An alternating e.m.f. is applied to a series combination of `L=2 H, C= 10 mu F and R=50 Omega`. For a particular value of the angular frequency of the applied e.m.f., resonance is produced. Then the impedance z of the combination is

A

a. `20 Omega`

B

b.`30 Omega`

C

.c. `40 Omega`

D

d. `50 Omega`

Text Solution

Verified by Experts

The correct Answer is:
D
In series resonance, `Z =R = 50 Omega`.
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MARVEL PUBLICATION-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS -TEST YOUR GRASP - 16
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