Q. No.\(L,C\) and \(R\) represent the value of inductance, capacitance and resistance, respectively. The factor which has the same dimensions as that of the inverse of resonance frequency is:
1. \(\sqrt{LC}\)
2. \(\large\sqrt{\frac{L}{C}}\)
3. \(\large\frac{C}{L}\)
4. \(\large\frac{R}{L}\)
1. \(\sqrt{LC}\)
2. \(\large\sqrt{\frac{L}{C}}\)
3. \(\large\frac{C}{L}\)
4. \(\large\frac{R}{L}\)
Subtopic: Â Different Types of AC Circuits |
 60%
From NCERT
NEET - 2024
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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: Â Different Types of AC Circuits |
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: Â Different Types of AC Circuits |
 61%
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: Â Different Types of AC Circuits |
 59%
From NCERT
NEET - 2023
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An AC source is connected to the given circuit. The value of \(\phi\) will be:
| 1. | \(60^\circ\) | 2. | \(90^\circ\) |
| 3. | \(30^\circ\) | 4. | \(45^\circ\) |
Subtopic: Â Different Types of AC Circuits |
 63%
From NCERT
NEET - 2023
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If \(Z_1\) and \(Z_2\) are the impedances of the given circuits (a) and (b) as shown in figures, then choose the correct option:
| 1. | \(Z_1<Z_2\) | 2. | \(Z_1+Z_2=20~\Omega\) |
| 3. | \(Z_1=Z_2\) | 4. | \(Z_1>Z_2\) |
Subtopic: Â Different Types of AC Circuits |
 61%
From NCERT
NEET - 2023
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For very high frequencies, the effective impedance of the circuit (shown in the figure) will be:
| 1. | \(4~ \Omega\) | 2. | \(6~ \Omega\) |
| 3. | \(1~ \Omega\) | 4. | \(3~ \Omega\) |
Subtopic: Â Different Types of AC Circuits |
From NCERT
NEET - 2023
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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: Â Different Types of AC Circuits |
 72%
From NCERT
NEET - 2022
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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: | In AC circuits containing pure capacitance only, the phase difference between the current and the voltage is \(\pi.\) |
| 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: Â Different Types of AC Circuits |
 68%
From NCERT
NEET - 2022
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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: Â Different Types of AC Circuits |
 67%
From NCERT
NEET - 2022
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