(B) In an $LCR$ series circuit,the phase angle $\phi$ is given by $\tan \phi = \frac{X_L - X_C}{R}$.Case $1$: If ${X_L} > {X_C}$,then $\tan \phi > 0$,

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Current lags voltage when ${X_C} {X_L}$.

(B) In an $LCR$ series circuit,the phase angle $\phi$ is given by $\tan \phi = \frac{X_L - X_C}{R}$.Case $1$: If ${X_L} > {X_C}$,then $\tan \phi > 0$,which means $\phi$ is positive. In this case,the voltage leads the current,or the current lags the voltage.Case $2$: If ${X_C} > {X_L}$,then $\tan \phi Therefore,when ${X_C} {X_L}$,the current leads the voltage.

Class 12 Physics Alternating Current RL, RC and LC AC Circuits

Medium

In an $LCR$ series circuit,if ${X_C} < {X_L}$ and ${X_C} > {X_L}$,determine whether the current in the circuit leads or lags the voltage.

A
Current leads voltage when ${X_C} < {X_L}$,and lags when ${X_C} > {X_L}$.
B
Current lags voltage when ${X_C} < {X_L}$,and leads when ${X_C} > {X_L}$.
C
Current leads voltage in both cases.
D
Current lags voltage in both cases.

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Class 12

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Alternating Current

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RL, RC and LC AC Circuits

What will be the self-inductance of a coil,to be connected in series with a resistance of $\pi \sqrt{3} \, \Omega$,such that the phase difference between the $EMF$ and the current at $50 \, Hz$ frequency is $30^o$ (in $, H$)?

Easy

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In an $AC$ circuit,a resistance of $R \, \Omega$ is connected in series with an inductance $L$. If the phase angle between voltage and current is $45^o$,the value of inductive reactance will be:

Easy

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An inductor and a resistor are connected in series to an $AC$ source of $10 \ V$. If the potential difference across the inductor is $6 \ V$,then the potential difference across the resistor is: (in $V$)

DifficultTS EAMCET 2024

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When $100\, V$ $DC$ is applied across a solenoid,a current of $1\, A$ flows in it. When $100\, V$ $AC$ is applied across the same coil,the current drops to $0.5\, A$. If the frequency of the $AC$ source is $50\, Hz$,the impedance and inductance of the solenoid are:

Difficult

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In a circuit,$L, C$ and $R$ are connected in series with an alternating voltage source of frequency $f$. The current leads the voltage by $45^o$. The value of $C$ is

MediumAIPMT 2005

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In an $LCR$ series circuit,if ${X_C} < {X_L}$ and ${X_C} > {X_L}$,determine whether the current in the circuit leads or lags the voltage.

Similar Questions

What will be the self-inductance of a coil,to be connected in series with a resistance of $\pi \sqrt{3} \, \Omega$,such that the phase difference between the $EMF$ and the current at $50 \, Hz$ frequency is $30^o$ (in $, H$)?

In an $AC$ circuit,a resistance of $R \, \Omega$ is connected in series with an inductance $L$. If the phase angle between voltage and current is $45^o$,the value of inductive reactance will be:

An inductor and a resistor are connected in series to an $AC$ source of $10 \ V$. If the potential difference across the inductor is $6 \ V$,then the potential difference across the resistor is: (in $V$)

When $100\, V$ $DC$ is applied across a solenoid,a current of $1\, A$ flows in it. When $100\, V$ $AC$ is applied across the same coil,the current drops to $0.5\, A$. If the frequency of the $AC$ source is $50\, Hz$,the impedance and inductance of the solenoid are:

In a circuit,$L, C$ and $R$ are connected in series with an alternating voltage source of frequency $f$. The current leads the voltage by $45^o$. The value of $C$ is

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