01. A.C. Voltage Applied to Inductance & Capacitor
Alternating Current

155032 In an oscillating $L C$ circuit, the value of inductance is $1.6 \mathrm{mH}$ and the value of capacitance is $4 \mu \mathrm{F}$. If the maximum charge on the capacitor is $4 \times 10^{-6} \mathrm{C}$, then the maximum current is

1 $75 \mathrm{~mA}$
2 $12.5 \mathrm{~mA}$
3 $125 \mathrm{~mA}$
4 $50 \mathrm{~mA}$
Alternating Current

155035
Consider a pure inductive A.C. circuit as shown in the figure. If the average power consumed is $P$, then

1 $\mathrm{P}>0$
2 $\mathrm{P} \lt 0$
3 $\mathrm{P}=0$
4 $\mathrm{P}$ is infinite
Alternating Current

155036 An ac source of angular frequency $\omega$ is fed across a resistor $\mathbf{R}$ and a capacitor $C$ in series. The current flowing in the circuit found to be ' $I$ ' now the frequency of the source is changed to $\frac{\omega}{3}$. (Maintaining the same voltage) the current in the circuit is found to be halved. What is the ratio of reactance to resistance at the original frequency?

1 $\sqrt{\frac{5}{7}}$
2 $\sqrt{\frac{3}{4}}$
3 $\sqrt{\frac{3}{5}}$
4 $\sqrt{\frac{7}{5}}$
Alternating Current

155038 If $120 \mathrm{~V}, 60 \mathrm{~Hz}$ Ac voltage is applied to an $\mathrm{LR}$ having $R=100 \Omega$ and $L=2 H$, then current in the circuit is

1 $0.32 \mathrm{~A}$
2 $0.16 \mathrm{~A}$
3 $0.48 \mathrm{~A}$
4 $0.80 \mathrm{~A}$
Alternating Current

155039 A coil of resistance $50 \Omega$ is connected across a $5.0 \mathrm{~V}$ battery. If the current in the coil is found to be $50 \mathrm{~mA}$ after time $\mathrm{t}=0.1$ battery is connected, then the inductance of the coil is

1 $\frac{5}{\ln (2)}$
2 $10 \ln (2)$
3 $5 \mathrm{e}^{4}$
4 $\frac{10}{\mathrm{e}^{4}}$
Alternating Current

155032 In an oscillating $L C$ circuit, the value of inductance is $1.6 \mathrm{mH}$ and the value of capacitance is $4 \mu \mathrm{F}$. If the maximum charge on the capacitor is $4 \times 10^{-6} \mathrm{C}$, then the maximum current is

1 $75 \mathrm{~mA}$
2 $12.5 \mathrm{~mA}$
3 $125 \mathrm{~mA}$
4 $50 \mathrm{~mA}$
Alternating Current

155035
Consider a pure inductive A.C. circuit as shown in the figure. If the average power consumed is $P$, then

1 $\mathrm{P}>0$
2 $\mathrm{P} \lt 0$
3 $\mathrm{P}=0$
4 $\mathrm{P}$ is infinite
Alternating Current

155036 An ac source of angular frequency $\omega$ is fed across a resistor $\mathbf{R}$ and a capacitor $C$ in series. The current flowing in the circuit found to be ' $I$ ' now the frequency of the source is changed to $\frac{\omega}{3}$. (Maintaining the same voltage) the current in the circuit is found to be halved. What is the ratio of reactance to resistance at the original frequency?

1 $\sqrt{\frac{5}{7}}$
2 $\sqrt{\frac{3}{4}}$
3 $\sqrt{\frac{3}{5}}$
4 $\sqrt{\frac{7}{5}}$
Alternating Current

155038 If $120 \mathrm{~V}, 60 \mathrm{~Hz}$ Ac voltage is applied to an $\mathrm{LR}$ having $R=100 \Omega$ and $L=2 H$, then current in the circuit is

1 $0.32 \mathrm{~A}$
2 $0.16 \mathrm{~A}$
3 $0.48 \mathrm{~A}$
4 $0.80 \mathrm{~A}$
Alternating Current

155039 A coil of resistance $50 \Omega$ is connected across a $5.0 \mathrm{~V}$ battery. If the current in the coil is found to be $50 \mathrm{~mA}$ after time $\mathrm{t}=0.1$ battery is connected, then the inductance of the coil is

1 $\frac{5}{\ln (2)}$
2 $10 \ln (2)$
3 $5 \mathrm{e}^{4}$
4 $\frac{10}{\mathrm{e}^{4}}$
Alternating Current

155032 In an oscillating $L C$ circuit, the value of inductance is $1.6 \mathrm{mH}$ and the value of capacitance is $4 \mu \mathrm{F}$. If the maximum charge on the capacitor is $4 \times 10^{-6} \mathrm{C}$, then the maximum current is

1 $75 \mathrm{~mA}$
2 $12.5 \mathrm{~mA}$
3 $125 \mathrm{~mA}$
4 $50 \mathrm{~mA}$
Alternating Current

155035
Consider a pure inductive A.C. circuit as shown in the figure. If the average power consumed is $P$, then

1 $\mathrm{P}>0$
2 $\mathrm{P} \lt 0$
3 $\mathrm{P}=0$
4 $\mathrm{P}$ is infinite
Alternating Current

155036 An ac source of angular frequency $\omega$ is fed across a resistor $\mathbf{R}$ and a capacitor $C$ in series. The current flowing in the circuit found to be ' $I$ ' now the frequency of the source is changed to $\frac{\omega}{3}$. (Maintaining the same voltage) the current in the circuit is found to be halved. What is the ratio of reactance to resistance at the original frequency?

1 $\sqrt{\frac{5}{7}}$
2 $\sqrt{\frac{3}{4}}$
3 $\sqrt{\frac{3}{5}}$
4 $\sqrt{\frac{7}{5}}$
Alternating Current

155038 If $120 \mathrm{~V}, 60 \mathrm{~Hz}$ Ac voltage is applied to an $\mathrm{LR}$ having $R=100 \Omega$ and $L=2 H$, then current in the circuit is

1 $0.32 \mathrm{~A}$
2 $0.16 \mathrm{~A}$
3 $0.48 \mathrm{~A}$
4 $0.80 \mathrm{~A}$
Alternating Current

155039 A coil of resistance $50 \Omega$ is connected across a $5.0 \mathrm{~V}$ battery. If the current in the coil is found to be $50 \mathrm{~mA}$ after time $\mathrm{t}=0.1$ battery is connected, then the inductance of the coil is

1 $\frac{5}{\ln (2)}$
2 $10 \ln (2)$
3 $5 \mathrm{e}^{4}$
4 $\frac{10}{\mathrm{e}^{4}}$
Alternating Current

155032 In an oscillating $L C$ circuit, the value of inductance is $1.6 \mathrm{mH}$ and the value of capacitance is $4 \mu \mathrm{F}$. If the maximum charge on the capacitor is $4 \times 10^{-6} \mathrm{C}$, then the maximum current is

1 $75 \mathrm{~mA}$
2 $12.5 \mathrm{~mA}$
3 $125 \mathrm{~mA}$
4 $50 \mathrm{~mA}$
Alternating Current

155035
Consider a pure inductive A.C. circuit as shown in the figure. If the average power consumed is $P$, then

1 $\mathrm{P}>0$
2 $\mathrm{P} \lt 0$
3 $\mathrm{P}=0$
4 $\mathrm{P}$ is infinite
Alternating Current

155036 An ac source of angular frequency $\omega$ is fed across a resistor $\mathbf{R}$ and a capacitor $C$ in series. The current flowing in the circuit found to be ' $I$ ' now the frequency of the source is changed to $\frac{\omega}{3}$. (Maintaining the same voltage) the current in the circuit is found to be halved. What is the ratio of reactance to resistance at the original frequency?

1 $\sqrt{\frac{5}{7}}$
2 $\sqrt{\frac{3}{4}}$
3 $\sqrt{\frac{3}{5}}$
4 $\sqrt{\frac{7}{5}}$
Alternating Current

155038 If $120 \mathrm{~V}, 60 \mathrm{~Hz}$ Ac voltage is applied to an $\mathrm{LR}$ having $R=100 \Omega$ and $L=2 H$, then current in the circuit is

1 $0.32 \mathrm{~A}$
2 $0.16 \mathrm{~A}$
3 $0.48 \mathrm{~A}$
4 $0.80 \mathrm{~A}$
Alternating Current

155039 A coil of resistance $50 \Omega$ is connected across a $5.0 \mathrm{~V}$ battery. If the current in the coil is found to be $50 \mathrm{~mA}$ after time $\mathrm{t}=0.1$ battery is connected, then the inductance of the coil is

1 $\frac{5}{\ln (2)}$
2 $10 \ln (2)$
3 $5 \mathrm{e}^{4}$
4 $\frac{10}{\mathrm{e}^{4}}$
Alternating Current

155032 In an oscillating $L C$ circuit, the value of inductance is $1.6 \mathrm{mH}$ and the value of capacitance is $4 \mu \mathrm{F}$. If the maximum charge on the capacitor is $4 \times 10^{-6} \mathrm{C}$, then the maximum current is

1 $75 \mathrm{~mA}$
2 $12.5 \mathrm{~mA}$
3 $125 \mathrm{~mA}$
4 $50 \mathrm{~mA}$
Alternating Current

155035
Consider a pure inductive A.C. circuit as shown in the figure. If the average power consumed is $P$, then

1 $\mathrm{P}>0$
2 $\mathrm{P} \lt 0$
3 $\mathrm{P}=0$
4 $\mathrm{P}$ is infinite
Alternating Current

155036 An ac source of angular frequency $\omega$ is fed across a resistor $\mathbf{R}$ and a capacitor $C$ in series. The current flowing in the circuit found to be ' $I$ ' now the frequency of the source is changed to $\frac{\omega}{3}$. (Maintaining the same voltage) the current in the circuit is found to be halved. What is the ratio of reactance to resistance at the original frequency?

1 $\sqrt{\frac{5}{7}}$
2 $\sqrt{\frac{3}{4}}$
3 $\sqrt{\frac{3}{5}}$
4 $\sqrt{\frac{7}{5}}$
Alternating Current

155038 If $120 \mathrm{~V}, 60 \mathrm{~Hz}$ Ac voltage is applied to an $\mathrm{LR}$ having $R=100 \Omega$ and $L=2 H$, then current in the circuit is

1 $0.32 \mathrm{~A}$
2 $0.16 \mathrm{~A}$
3 $0.48 \mathrm{~A}$
4 $0.80 \mathrm{~A}$
Alternating Current

155039 A coil of resistance $50 \Omega$ is connected across a $5.0 \mathrm{~V}$ battery. If the current in the coil is found to be $50 \mathrm{~mA}$ after time $\mathrm{t}=0.1$ battery is connected, then the inductance of the coil is

1 $\frac{5}{\ln (2)}$
2 $10 \ln (2)$
3 $5 \mathrm{e}^{4}$
4 $\frac{10}{\mathrm{e}^{4}}$