# Electrical Engineering - RLC Circuits and Resonance - Discussion

Discussion Forum : RLC Circuits and Resonance - General Questions (Q.No. 2)

2.

In a series

*RLC*circuit that is operating above the resonant frequency, the currentDiscussion:

12 comments Page 1 of 2.
Nabin Baniya said:
6 years ago

Above resonance frequency, the circuit is inductive.

ARVIND said:
6 years ago

The reactive voltage VL and VC, does it cancel each other at resonance? Can anyone explain?

Pruthviraj said:
7 years ago

Resonant frequency(fr) = 1/(2 * 3.14 * (LC)1/2,

Take that root.

Given that RLC circuit is above the fr then we know XL > XC in case fr is more then current must be low and that case current should be lags by applied voltage.

Take that root.

Given that RLC circuit is above the fr then we know XL > XC in case fr is more then current must be low and that case current should be lags by applied voltage.

Sandeep sana said:
9 years ago

Resonant frequency XL>XC. So current lags the applied voltage.

Sandeep wasnik said:
9 years ago

At resonant condition.

XL = XC @ resonant frequency.

Resonant frequency more if XL>XC and less if XL<XC.

Here it is more and it means XL is high and hence L is high (XL = 360FL).

L always takes lags the current.

Hence the current lags the applied voltage.

XL = XC @ resonant frequency.

Resonant frequency more if XL>XC and less if XL<XC.

Here it is more and it means XL is high and hence L is high (XL = 360FL).

L always takes lags the current.

Hence the current lags the applied voltage.

Varshney said:
9 years ago

Above resonance frequency current lags voltage because at this situation XL>XC.

RAJ said:
9 years ago

At resonance I in phase with V.

Aggrey kere said:
10 years ago

At resonance, Xl =XC. Thus there no phase angle. Therefore; no lug or lead.

Manindra said:
10 years ago

At resonant frequency, (Xl=Xc).

Above resonant frequency, (Xl>Xc).

Below resonant frequency (Xl<Xc).

Above resonant frequency, (Xl>Xc).

Below resonant frequency (Xl<Xc).

Abhi said:
10 years ago

At frequencies above the resonance frequency the series RLC circuit. Behaves as an inductive load (evident from equivalent impedance equation) hence current will lag.

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