Home
Class 12
PHYSICS
At resonance frequency the impedance in ...

At resonance frequency the impedance in series LCR circuit is

A

Maximum

B

Minimum

C

`z = sqrt ( R ^(2) + (X _(C) - X _(L)) ^(2))`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
`Z = R (because X _(C) = X _(L))`
Promotional Banner

Similar Questions

Explore conceptually related problems

At resonant frequency the current amplitude in series LCR circuit is

In a R, L, C circult, three elements is connected in series by an ac source. If frequency is less than resonating frequency then net impedance of the circuit will be

Obtain the resonant frequency (omega_(r)) of a series LCR circuit withL = 2.0 H, C = 32 muF and R = 10 ohm. What is the Q value of this circuit ?

Obtain the resonant frequency (omega_(r)) of a series LCR circuit withL = 2.0 H, C = 32 muF and R = 10 ohm. What is the Q value of this circuit ?

Obtain the resonant frequency (omega_(r)) of a series LCR circuit withL = 2.0 H, C = 32 muF and R = 10 ohm. What is the Q value of this circuit ?

Obtain the resonant frequency and Q-factor of a series LCR circuit with L=3.0H, C=27(mu)F, and R=7.4 Omega . How will you improve the shapness of resonance of the circuit by a factor of 2 by readucing its full width at half maximum?

Obtain the resonant frequency and Q-factor of a series LCR circuit with L=3.0H, C=27muF, and R=7.4 Omega . How will you improve the sharpness of resonance of the circuit by a factor of 2 by reducing its full width at half maximum?

Keeping the source of frequency equal to the resonating frequency of the series LCR circuit, if the three elements L, C and R in are arranged in parallel , show that the total current in the parallel LCR circuit is a minimum at this frequency. Obtain the r.m.s. value of current in each brach of the circuit for the elements and source specified in for this frequency.

Obtain the resonant frequency and Q – factor of a series LCR circuit with L = 3H, C = 27muF, " " R = 7.4Omega .

When the frequency of the AC source in an LCR circuit equals the resonant frequency, the reactance of the circuit is zero. Does it mean that there is no current through the inductor or the capacitor?