Select Chapter Topics:

1. | \(1 / \sqrt{2}\) times the rms value of the AC source |

2. | the value of voltage supplied to the circuit |

3. | the rms value of the AC source |

4. | \(\sqrt{2}\) times the rms value of the AC source |

Subtopic: RMS & Average Values |

74%

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NEET - 2022

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NEET 2023 - Target Batch - Aryan Raj Singh

A series \(LCR\) circuit with inductance \(10~\mathrm{H}\), capacitance \(10~\mu F\), resistance \(50~\Omega\) is connected to an AC source of voltage, \(V=200 \sin (100 t) \text { volt }\). If the resonant frequency of the \(LCR\) circuit is \(\nu_0\) and the frequency of the AC source is \(\nu\), then:

1. | \(\nu=100 \mathrm{~Hz} ; ~\nu_0=\frac{100}{\pi} \mathrm{~Hz}\) |

2. | \(\nu_0=\nu=50 \mathrm{~Hz}\) |

3. | \(\nu_0=\nu=\frac{50}{\pi} \mathrm{Hz}\) |

4. | \(\nu_{0}=\frac{50}{\pi}~ \mathrm{Hz}, \nu=50 \mathrm{~Hz}\) |

Subtopic: Different Types of AC Circuits |

70%

From NCERT

NEET - 2022

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An a.c. source given by \(V=V_m\sin\omega t\) is connected to a pure inductor \(L\) in a circuit and \(I_m\) is the peak value of the AC current. The instantaneous power supplied to the inductor is:

1. \(\frac{V_mI_m}{2}\mathrm{sin}(2\omega t)\)

2. \(-\frac{V_mI_m}{2}\mathrm{sin}(2\omega t)\)

3. \({V_mI_m}\mathrm{sin}^{2}(\omega t)\)

4. \(-{V_mI_m}\mathrm{sin}^{2}(\omega t)\)

Subtopic: Power factor |

From NCERT

NEET - 2022

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NEET 2023 - Target Batch - Aryan Raj Singh

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Given below are two statements:

Statement I: |
In an AC circuit, the current through a capacitor leads the voltage across it. |

Statement II: |
\(\pi.\) | In AC circuits containing pure capacitance only, the phase difference between the current and the voltage is

1. | Both Statement I and Statement II are correct. |

2. | Both Statement I and Statement II are incorrect. |

3. | Statement I is correct but Statement II is incorrect. |

4. | Statement I is incorrect but Statement II is correct. |

Subtopic: Different Types of AC Circuits |

66%

From NCERT

NEET - 2022

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NEET 2023 - Target Batch - Aryan Raj Singh

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An inductor of inductance \(2~\text{mH}\) is connected to a \(220~\text{V}\), \(50~\text{Hz}\) ac source. Let the inductive reactance in the circuit is \(X_1\). If a \(220~\text{V}\) DC source replaces the AC source in the circuit, then the inductive reactance in the circuit is \(X_2\). \(X_1\) and \(X_2\), respectively, are:

1. \(6.28~\Omega\), zero

2. \(6.28~\Omega\), infinity

3. \(0.628~\Omega\), zero

4. \(0.628~\Omega\), infinity

1. \(6.28~\Omega\), zero

2. \(6.28~\Omega\), infinity

3. \(0.628~\Omega\), zero

4. \(0.628~\Omega\), infinity

Subtopic: Different Types of AC Circuits |

65%

From NCERT

NEET - 2022

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NEET 2023 - Target Batch - Aryan Raj Singh

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A standard filament lamp consumes \(100\) W when connected to \(200\) V AC mains supply. The peak current through the bulb will be:

1. \(0.707\) A

2. \(1\) A

3. \(1.414\) A

4. \(2\) A

1. \(0.707\) A

2. \(1\) A

3. \(1.414\) A

4. \(2\) A

Subtopic: RMS & Average Values |

69%

From NCERT

NEET - 2022

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NEET 2023 - Target Batch - Aryan Raj Singh

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An ac source is connected to a capacitor \(C\). Due to decrease in its operating frequency:

1. | capacitive reactance remains constant | 2. | capacitive reactance decreases. |

3. | displacement current increases. | 4. | displacement current decreases. |

Subtopic: Different Types of AC Circuits |

From NCERT

NEET - 2023

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A \(12~\text{V},60~\text{W}\) lamp is connected to the secondary of a step down transformer, whose primary is connected to ac mains of \(220~\text{V}\). Assuming the transformer to be ideal, what is the current in the primary winding?

1. \(0.37 ~\mathrm{A}\)

2. \(0.27 ~\mathrm{A}\)

3. \(2.7 ~\mathrm{A}\)

4. \(3.7 ~\mathrm{A}\)

1. \(0.37 ~\mathrm{A}\)

2. \(0.27 ~\mathrm{A}\)

3. \(2.7 ~\mathrm{A}\)

4. \(3.7 ~\mathrm{A}\)

Subtopic: Transformer |

66%

From NCERT

NEET - 2023

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In a series \({LCR}\) circuit, the inductance \({L}\) is \(10~\text{mH}\), capacitance \({C}\) is \(1~\mu\text{F}\) and resistance \({R}\) is \(100~\Omega\). The frequency at which resonance occurs is:

1. | \(1.59~\text{kHz}\) | 2. | \(15.9~\text{rad/s}\) |

3. | \(15.9~\text{kHz}\) | 4. | \(1.59~\text{rad/s}\) |

Subtopic: Different Types of AC Circuits |

58%

From NCERT

NEET - 2023

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The net impedance of circuit (as shown in the figure) will be:

1. \(25~\Omega\)

2. \(10\sqrt{2}~\Omega\)

3. \(15~\Omega\)

4. \(5\sqrt{5}~\Omega\)

1. \(25~\Omega\)

2. \(10\sqrt{2}~\Omega\)

3. \(15~\Omega\)

4. \(5\sqrt{5}~\Omega\)

Subtopic: Different Types of AC Circuits |

57%

From NCERT

NEET - 2023

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