In the circuit given below, what will be the reading of the voltmeter (1) 300 V

(2) 900 V

(3) 200 V

(4) 400 V

Concept Questions :-

Different types of AC Circuits
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

In the circuit shown below, what will be the readings of the voltmeter and ammeter (1) 800 V, 2A

(2) 300 V, 2A

(3) 220 V, 2.2 A

(4) 100 V, 2A

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The diagram shows a capacitor C and a resistor R connected in series to an ac source. V1 and V2 are voltmeters and A is an ammeter: Consider now the following statements

I. Readings in A and V2 are always in phase

III. Readings in A and V1 are always in phase

Which of these statements is/are correct?

(1) I only

(2) II only

(3) I and II only

(4) II and III only

Concept Questions :-

Different types of AC Circuits
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

In the circuit shown in figure neglecting source resistance the voltmeter and ammeter reading will respectively, will be (1) 0V, 3A

(2) 150V, 3A

(3) 150V, 6A

(4) 0V, 8A

Concept Questions :-

Different types of AC Circuits
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

In the circuit shown in the figure, the ac source gives a voltage $V=20\mathrm{cos}\left(2000\text{\hspace{0.17em}​}t\right).$ Neglecting source resistance, the voltmeter and ammeter reading will be: (1) 0V, 0.47A

(2) 1.68V, 0.47A

(3) 0V, 1.4 A

(4) 5.6V, 1.4 A

Concept Questions :-

Rms and average values
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

An ac source of angular frequency ω is fed across a resistor r and a capacitor C in series. The current registered is I. If now the frequency of the source is changed to ω/3 (but maintaining the same voltage), the current in the circuit is found to be halved. Calculate the ratio of reactance to resistance at the original frequency ω.

(1) $\sqrt{\frac{3}{5}}$

(2) $\sqrt{\frac{2}{5}}$

(3) $\sqrt{\frac{1}{5}}$

(4) $\sqrt{\frac{4}{5}}$

Concept Questions :-

Different types of AC Circuits
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

For a series RLC circuit R = XL = 2XC. The impedance of the circuit and phase difference (between) V and i will be

(1) $\frac{\sqrt{5}R}{2},\text{\hspace{0.17em}}{\mathrm{tan}}^{-1}\left(2\right)$

(2) $\frac{\sqrt{5}R}{2},{\mathrm{tan}}^{-1}\left(\frac{1}{2}\right)$

(3) $\sqrt{5}{X}_{C},{\mathrm{tan}}^{-1}\left(2\right)$

(4) $\sqrt{5}R,\text{\hspace{0.17em}}{\mathrm{tan}}^{-1}\left(\frac{1}{2}\right)$

Concept Questions :-

Different types of AC Circuits
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

In the adjoining ac circuit the voltmeter whose reading will be zero at resonance is (1) V1

(2) V2

(3) V3

(4) V4

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

In the adjoining figure, the impedance of the circuit will be: (1) 120 ohm

(2) 50 ohm

(3) 60 ohm

(4) 90 ohm

Concept Questions :-

Different types of AC Circuits
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Which one of the following curves represents the variation of impedance (Z) with frequency f in series LCR circuit

(1) (2) (3) (4) 