155129
In a series LCR circuit at resonance, the applied e.m.f. of the source and current in the circuit are
1 differ in phase by $\frac{\pi}{2} \mathrm{rad}$
2 in phase
3 out of phase
4 differ in phase by $\frac{\pi}{4} \mathrm{rad}$
Explanation:
B In a series LCR circuit at resonance the applied emf of the source and current in the circuit are in phase. $\because \mathrm{X}_{\mathrm{L}}=\mathrm{X}_{\mathrm{C}} \&$ circuit behaves as resistive circuit.
MHT-CET 2020
Alternating Current
155131
The LCR series and parallel resonant circuits are respectively called as
1 rejector circuit, acceptor circuit.
2 rejector circuit, rejector circuit.
3 acceptor circuit, acceptor circuit.
4 acceptor circuit, rejector circuit.
Explanation:
D The LCR series and parallel resonant circuits are respectively called acceptor circuit and rejecter circuit.
MHT-CET 2020
Alternating Current
155157
If in an A.C., $L-C$ series circuit $X_{C}>X_{L}$. Hence potential
1 lags behind the current by $\frac{\pi}{2}$ in phase.
2 leads the current by $\pi$ in phase
3 leads the current by $\frac{\pi}{2}$ in phase
4 lags behind the current by $\pi$ in phase
Explanation:
A If in an A.C., L-C series circuit $X_{C}>X_{L}$. Potential lags behind the current by $\pi / 2$ phase.
GUJCET 2019
Alternating Current
155214
In an ideal parallel LC circuit, the charged by connecting it to a D.C. is then disconnected. The current in the circuit
1 becomes zero instantaneously
2 grows monotonically
3 decays monotonically
4 oscillates instantaneously
Explanation:
D When capacitor is connected to a DC source and then disconnected, it gets charged and then it starts discharging though the inductor. When capacitor $\mathrm{C}$ is fully charged to $\mathrm{q}_{0}$, the current in inductor $\mathrm{L}$ is zero at this instant an amount of energy $\frac{1}{2} \frac{\mathrm{q}_{0}^{2}}{\mathrm{C}}$ is stored in electric field between the plates of the capacitor. When circuit is closed, the capacitor begins to discharge through the inductor causing current to flow. The energy of electric field between the capacitor plates has transferred to magnetic field. By Lenz's law the dying magnetic field induces an emf in the inductance in the same direction as current. Hence $\mathrm{L}-\mathrm{C}$ circuits set up oscillations.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Alternating Current
155129
In a series LCR circuit at resonance, the applied e.m.f. of the source and current in the circuit are
1 differ in phase by $\frac{\pi}{2} \mathrm{rad}$
2 in phase
3 out of phase
4 differ in phase by $\frac{\pi}{4} \mathrm{rad}$
Explanation:
B In a series LCR circuit at resonance the applied emf of the source and current in the circuit are in phase. $\because \mathrm{X}_{\mathrm{L}}=\mathrm{X}_{\mathrm{C}} \&$ circuit behaves as resistive circuit.
MHT-CET 2020
Alternating Current
155131
The LCR series and parallel resonant circuits are respectively called as
1 rejector circuit, acceptor circuit.
2 rejector circuit, rejector circuit.
3 acceptor circuit, acceptor circuit.
4 acceptor circuit, rejector circuit.
Explanation:
D The LCR series and parallel resonant circuits are respectively called acceptor circuit and rejecter circuit.
MHT-CET 2020
Alternating Current
155157
If in an A.C., $L-C$ series circuit $X_{C}>X_{L}$. Hence potential
1 lags behind the current by $\frac{\pi}{2}$ in phase.
2 leads the current by $\pi$ in phase
3 leads the current by $\frac{\pi}{2}$ in phase
4 lags behind the current by $\pi$ in phase
Explanation:
A If in an A.C., L-C series circuit $X_{C}>X_{L}$. Potential lags behind the current by $\pi / 2$ phase.
GUJCET 2019
Alternating Current
155214
In an ideal parallel LC circuit, the charged by connecting it to a D.C. is then disconnected. The current in the circuit
1 becomes zero instantaneously
2 grows monotonically
3 decays monotonically
4 oscillates instantaneously
Explanation:
D When capacitor is connected to a DC source and then disconnected, it gets charged and then it starts discharging though the inductor. When capacitor $\mathrm{C}$ is fully charged to $\mathrm{q}_{0}$, the current in inductor $\mathrm{L}$ is zero at this instant an amount of energy $\frac{1}{2} \frac{\mathrm{q}_{0}^{2}}{\mathrm{C}}$ is stored in electric field between the plates of the capacitor. When circuit is closed, the capacitor begins to discharge through the inductor causing current to flow. The energy of electric field between the capacitor plates has transferred to magnetic field. By Lenz's law the dying magnetic field induces an emf in the inductance in the same direction as current. Hence $\mathrm{L}-\mathrm{C}$ circuits set up oscillations.
155129
In a series LCR circuit at resonance, the applied e.m.f. of the source and current in the circuit are
1 differ in phase by $\frac{\pi}{2} \mathrm{rad}$
2 in phase
3 out of phase
4 differ in phase by $\frac{\pi}{4} \mathrm{rad}$
Explanation:
B In a series LCR circuit at resonance the applied emf of the source and current in the circuit are in phase. $\because \mathrm{X}_{\mathrm{L}}=\mathrm{X}_{\mathrm{C}} \&$ circuit behaves as resistive circuit.
MHT-CET 2020
Alternating Current
155131
The LCR series and parallel resonant circuits are respectively called as
1 rejector circuit, acceptor circuit.
2 rejector circuit, rejector circuit.
3 acceptor circuit, acceptor circuit.
4 acceptor circuit, rejector circuit.
Explanation:
D The LCR series and parallel resonant circuits are respectively called acceptor circuit and rejecter circuit.
MHT-CET 2020
Alternating Current
155157
If in an A.C., $L-C$ series circuit $X_{C}>X_{L}$. Hence potential
1 lags behind the current by $\frac{\pi}{2}$ in phase.
2 leads the current by $\pi$ in phase
3 leads the current by $\frac{\pi}{2}$ in phase
4 lags behind the current by $\pi$ in phase
Explanation:
A If in an A.C., L-C series circuit $X_{C}>X_{L}$. Potential lags behind the current by $\pi / 2$ phase.
GUJCET 2019
Alternating Current
155214
In an ideal parallel LC circuit, the charged by connecting it to a D.C. is then disconnected. The current in the circuit
1 becomes zero instantaneously
2 grows monotonically
3 decays monotonically
4 oscillates instantaneously
Explanation:
D When capacitor is connected to a DC source and then disconnected, it gets charged and then it starts discharging though the inductor. When capacitor $\mathrm{C}$ is fully charged to $\mathrm{q}_{0}$, the current in inductor $\mathrm{L}$ is zero at this instant an amount of energy $\frac{1}{2} \frac{\mathrm{q}_{0}^{2}}{\mathrm{C}}$ is stored in electric field between the plates of the capacitor. When circuit is closed, the capacitor begins to discharge through the inductor causing current to flow. The energy of electric field between the capacitor plates has transferred to magnetic field. By Lenz's law the dying magnetic field induces an emf in the inductance in the same direction as current. Hence $\mathrm{L}-\mathrm{C}$ circuits set up oscillations.
155129
In a series LCR circuit at resonance, the applied e.m.f. of the source and current in the circuit are
1 differ in phase by $\frac{\pi}{2} \mathrm{rad}$
2 in phase
3 out of phase
4 differ in phase by $\frac{\pi}{4} \mathrm{rad}$
Explanation:
B In a series LCR circuit at resonance the applied emf of the source and current in the circuit are in phase. $\because \mathrm{X}_{\mathrm{L}}=\mathrm{X}_{\mathrm{C}} \&$ circuit behaves as resistive circuit.
MHT-CET 2020
Alternating Current
155131
The LCR series and parallel resonant circuits are respectively called as
1 rejector circuit, acceptor circuit.
2 rejector circuit, rejector circuit.
3 acceptor circuit, acceptor circuit.
4 acceptor circuit, rejector circuit.
Explanation:
D The LCR series and parallel resonant circuits are respectively called acceptor circuit and rejecter circuit.
MHT-CET 2020
Alternating Current
155157
If in an A.C., $L-C$ series circuit $X_{C}>X_{L}$. Hence potential
1 lags behind the current by $\frac{\pi}{2}$ in phase.
2 leads the current by $\pi$ in phase
3 leads the current by $\frac{\pi}{2}$ in phase
4 lags behind the current by $\pi$ in phase
Explanation:
A If in an A.C., L-C series circuit $X_{C}>X_{L}$. Potential lags behind the current by $\pi / 2$ phase.
GUJCET 2019
Alternating Current
155214
In an ideal parallel LC circuit, the charged by connecting it to a D.C. is then disconnected. The current in the circuit
1 becomes zero instantaneously
2 grows monotonically
3 decays monotonically
4 oscillates instantaneously
Explanation:
D When capacitor is connected to a DC source and then disconnected, it gets charged and then it starts discharging though the inductor. When capacitor $\mathrm{C}$ is fully charged to $\mathrm{q}_{0}$, the current in inductor $\mathrm{L}$ is zero at this instant an amount of energy $\frac{1}{2} \frac{\mathrm{q}_{0}^{2}}{\mathrm{C}}$ is stored in electric field between the plates of the capacitor. When circuit is closed, the capacitor begins to discharge through the inductor causing current to flow. The energy of electric field between the capacitor plates has transferred to magnetic field. By Lenz's law the dying magnetic field induces an emf in the inductance in the same direction as current. Hence $\mathrm{L}-\mathrm{C}$ circuits set up oscillations.
