06. AC VOLTAGE APPLIED TO A SERIES LCR CIRCUIT
AC (NCERT)

274661 In an experiment, $200\text{VA}.\text{C}$. is applied at the ends of an LCR circuit. The circuit consists of an inductive reactance $\left( {{X}_{L}} \right)=50\text{ }\!\!\Omega\!\!\text{ }$, capacitive reactance $\left( {{X}_{C}} \right)=50\text{ }\!\!\Omega\!\!\text{ }$ and ohmic resistance $\left( \text{R} \right)=10\text{ }\!\!\Omega\!\!\text{ }$. The impedance of the circuit is]#

1 $10\text{ }\!\!\Omega\!\!\text{ }$
2 $20\text{ }\!\!\Omega\!\!\text{ }$
3 $30\text{ }\!\!\Omega\!\!\text{ }$
4 $40\text{ }\!\!\Omega\!\!\text{ }$
AC (NCERT)

274662 The instantaneous values of emf and the current in a series ac circuit are-
$\text{E}={{\text{E}}_{0}}\text{sin}\omega \text{t}$ and $\text{I}={{\text{I}}_{0}}\text{sin}\left( \omega \text{t}+\pi /3 \right)$ respectively, then it is

1 Necessarily a RL circuit
2 Necessarily a RC circuit
3 Necessarily a LCR circuit
4 Can be RC or LCR circuit
AC (NCERT)

274664 A series $\text{LCR}$ circuit has $\text{L}=0.01\text{H},\text{R}=10\text{ }\!\!\Omega\!\!\text{ }$ and $\text{C}=1\mu \text{F}$ and it is connected to ac voltage of amplitude $\left( {{\text{V}}_{\text{m}}} \right)50\text{V}$. At frequency $60\text{ }\!\!%\!\!\text{ }$ lower than resonant frequency, the amplitude of current will be approximately :

1 $466\text{mA}$
2 $312\text{mA}$
3 $238\text{mA}$
4 $196\text{mA}$
AC (NCERT)

274661 In an experiment, $200\text{VA}.\text{C}$. is applied at the ends of an LCR circuit. The circuit consists of an inductive reactance $\left( {{X}_{L}} \right)=50\text{ }\!\!\Omega\!\!\text{ }$, capacitive reactance $\left( {{X}_{C}} \right)=50\text{ }\!\!\Omega\!\!\text{ }$ and ohmic resistance $\left( \text{R} \right)=10\text{ }\!\!\Omega\!\!\text{ }$. The impedance of the circuit is]#

1 $10\text{ }\!\!\Omega\!\!\text{ }$
2 $20\text{ }\!\!\Omega\!\!\text{ }$
3 $30\text{ }\!\!\Omega\!\!\text{ }$
4 $40\text{ }\!\!\Omega\!\!\text{ }$
AC (NCERT)

274662 The instantaneous values of emf and the current in a series ac circuit are-
$\text{E}={{\text{E}}_{0}}\text{sin}\omega \text{t}$ and $\text{I}={{\text{I}}_{0}}\text{sin}\left( \omega \text{t}+\pi /3 \right)$ respectively, then it is

1 Necessarily a RL circuit
2 Necessarily a RC circuit
3 Necessarily a LCR circuit
4 Can be RC or LCR circuit
AC (NCERT)

274664 A series $\text{LCR}$ circuit has $\text{L}=0.01\text{H},\text{R}=10\text{ }\!\!\Omega\!\!\text{ }$ and $\text{C}=1\mu \text{F}$ and it is connected to ac voltage of amplitude $\left( {{\text{V}}_{\text{m}}} \right)50\text{V}$. At frequency $60\text{ }\!\!%\!\!\text{ }$ lower than resonant frequency, the amplitude of current will be approximately :

1 $466\text{mA}$
2 $312\text{mA}$
3 $238\text{mA}$
4 $196\text{mA}$
AC (NCERT)

274661 In an experiment, $200\text{VA}.\text{C}$. is applied at the ends of an LCR circuit. The circuit consists of an inductive reactance $\left( {{X}_{L}} \right)=50\text{ }\!\!\Omega\!\!\text{ }$, capacitive reactance $\left( {{X}_{C}} \right)=50\text{ }\!\!\Omega\!\!\text{ }$ and ohmic resistance $\left( \text{R} \right)=10\text{ }\!\!\Omega\!\!\text{ }$. The impedance of the circuit is]#

1 $10\text{ }\!\!\Omega\!\!\text{ }$
2 $20\text{ }\!\!\Omega\!\!\text{ }$
3 $30\text{ }\!\!\Omega\!\!\text{ }$
4 $40\text{ }\!\!\Omega\!\!\text{ }$
AC (NCERT)

274662 The instantaneous values of emf and the current in a series ac circuit are-
$\text{E}={{\text{E}}_{0}}\text{sin}\omega \text{t}$ and $\text{I}={{\text{I}}_{0}}\text{sin}\left( \omega \text{t}+\pi /3 \right)$ respectively, then it is

1 Necessarily a RL circuit
2 Necessarily a RC circuit
3 Necessarily a LCR circuit
4 Can be RC or LCR circuit
AC (NCERT)

274664 A series $\text{LCR}$ circuit has $\text{L}=0.01\text{H},\text{R}=10\text{ }\!\!\Omega\!\!\text{ }$ and $\text{C}=1\mu \text{F}$ and it is connected to ac voltage of amplitude $\left( {{\text{V}}_{\text{m}}} \right)50\text{V}$. At frequency $60\text{ }\!\!%\!\!\text{ }$ lower than resonant frequency, the amplitude of current will be approximately :

1 $466\text{mA}$
2 $312\text{mA}$
3 $238\text{mA}$
4 $196\text{mA}$