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

274645 For the circuit shown in the fig., the current through the inductor is $0.9\text{A}$ while the current through the condenser is $0.4\text{A}$. Then

1 current drawn from source $\text{I}=1.13\text{A}$
2 $\omega =1/\left( 1.5\text{LC} \right)$
3 $\text{I}=0.5\text{A}$
4 $I=0.6\text{A}$
AC (NCERT)

274646 A capacitor of $10\mu \text{F}$ and an inductor of $1\text{H}$ are joined in series. An ac of $50\text{Hz}$ is applied to this combination. What is the impedance of the combination?

1 $\frac{5\left( {{\pi }^{2}}-5 \right)}{\pi }\text{ }\!\!\Omega\!\!\text{ }$
2 $\frac{{{10}^{2}}\left( {{\pi }^{2}}-10 \right)}{\pi }$
3 $\frac{10\left( {{\pi }^{2}}-5 \right)}{\pi }\text{ }\!\!\Omega\!\!\text{ }$
4 $\frac{5\left( 10-{{\pi }^{2}} \right)}{\pi }\text{ }\!\!\Omega\!\!\text{ }$
AC (NCERT)

274647 A 20 volt $AC$ is applied to a circuit consisting of a resistance and a coil with negligible resistance. If the voltage across the resistance is 12 volt, the voltage across the coil is- $\mathbf{NCE}$RT Page-245 / N-187 | CBSC Sample 2021-2022]#

1 16 V
2 $8\text{V}$
3 $10\text{V}$
4 $6\text{V}$
AC (NCERT)

274648 If wattless current flows in the $AC$ circuit, then the circuit is

1 Purely Resistive circuit
2 Purely Inductive circuit
3 LCR series circuit
4 RC series circuit only
AC (NCERT)

274645 For the circuit shown in the fig., the current through the inductor is $0.9\text{A}$ while the current through the condenser is $0.4\text{A}$. Then

1 current drawn from source $\text{I}=1.13\text{A}$
2 $\omega =1/\left( 1.5\text{LC} \right)$
3 $\text{I}=0.5\text{A}$
4 $I=0.6\text{A}$
AC (NCERT)

274646 A capacitor of $10\mu \text{F}$ and an inductor of $1\text{H}$ are joined in series. An ac of $50\text{Hz}$ is applied to this combination. What is the impedance of the combination?

1 $\frac{5\left( {{\pi }^{2}}-5 \right)}{\pi }\text{ }\!\!\Omega\!\!\text{ }$
2 $\frac{{{10}^{2}}\left( {{\pi }^{2}}-10 \right)}{\pi }$
3 $\frac{10\left( {{\pi }^{2}}-5 \right)}{\pi }\text{ }\!\!\Omega\!\!\text{ }$
4 $\frac{5\left( 10-{{\pi }^{2}} \right)}{\pi }\text{ }\!\!\Omega\!\!\text{ }$
AC (NCERT)

274647 A 20 volt $AC$ is applied to a circuit consisting of a resistance and a coil with negligible resistance. If the voltage across the resistance is 12 volt, the voltage across the coil is- $\mathbf{NCE}$RT Page-245 / N-187 | CBSC Sample 2021-2022]#

1 16 V
2 $8\text{V}$
3 $10\text{V}$
4 $6\text{V}$
AC (NCERT)

274648 If wattless current flows in the $AC$ circuit, then the circuit is

1 Purely Resistive circuit
2 Purely Inductive circuit
3 LCR series circuit
4 RC series circuit only
AC (NCERT)

274645 For the circuit shown in the fig., the current through the inductor is $0.9\text{A}$ while the current through the condenser is $0.4\text{A}$. Then

1 current drawn from source $\text{I}=1.13\text{A}$
2 $\omega =1/\left( 1.5\text{LC} \right)$
3 $\text{I}=0.5\text{A}$
4 $I=0.6\text{A}$
AC (NCERT)

274646 A capacitor of $10\mu \text{F}$ and an inductor of $1\text{H}$ are joined in series. An ac of $50\text{Hz}$ is applied to this combination. What is the impedance of the combination?

1 $\frac{5\left( {{\pi }^{2}}-5 \right)}{\pi }\text{ }\!\!\Omega\!\!\text{ }$
2 $\frac{{{10}^{2}}\left( {{\pi }^{2}}-10 \right)}{\pi }$
3 $\frac{10\left( {{\pi }^{2}}-5 \right)}{\pi }\text{ }\!\!\Omega\!\!\text{ }$
4 $\frac{5\left( 10-{{\pi }^{2}} \right)}{\pi }\text{ }\!\!\Omega\!\!\text{ }$
AC (NCERT)

274647 A 20 volt $AC$ is applied to a circuit consisting of a resistance and a coil with negligible resistance. If the voltage across the resistance is 12 volt, the voltage across the coil is- $\mathbf{NCE}$RT Page-245 / N-187 | CBSC Sample 2021-2022]#

1 16 V
2 $8\text{V}$
3 $10\text{V}$
4 $6\text{V}$
AC (NCERT)

274648 If wattless current flows in the $AC$ circuit, then the circuit is

1 Purely Resistive circuit
2 Purely Inductive circuit
3 LCR series circuit
4 RC series circuit only
AC (NCERT)

274645 For the circuit shown in the fig., the current through the inductor is $0.9\text{A}$ while the current through the condenser is $0.4\text{A}$. Then

1 current drawn from source $\text{I}=1.13\text{A}$
2 $\omega =1/\left( 1.5\text{LC} \right)$
3 $\text{I}=0.5\text{A}$
4 $I=0.6\text{A}$
AC (NCERT)

274646 A capacitor of $10\mu \text{F}$ and an inductor of $1\text{H}$ are joined in series. An ac of $50\text{Hz}$ is applied to this combination. What is the impedance of the combination?

1 $\frac{5\left( {{\pi }^{2}}-5 \right)}{\pi }\text{ }\!\!\Omega\!\!\text{ }$
2 $\frac{{{10}^{2}}\left( {{\pi }^{2}}-10 \right)}{\pi }$
3 $\frac{10\left( {{\pi }^{2}}-5 \right)}{\pi }\text{ }\!\!\Omega\!\!\text{ }$
4 $\frac{5\left( 10-{{\pi }^{2}} \right)}{\pi }\text{ }\!\!\Omega\!\!\text{ }$
AC (NCERT)

274647 A 20 volt $AC$ is applied to a circuit consisting of a resistance and a coil with negligible resistance. If the voltage across the resistance is 12 volt, the voltage across the coil is- $\mathbf{NCE}$RT Page-245 / N-187 | CBSC Sample 2021-2022]#

1 16 V
2 $8\text{V}$
3 $10\text{V}$
4 $6\text{V}$
AC (NCERT)

274648 If wattless current flows in the $AC$ circuit, then the circuit is

1 Purely Resistive circuit
2 Purely Inductive circuit
3 LCR series circuit
4 RC series circuit only