NEET 2022 Phase 2 | Alternating Current Question 17 | Physics

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

An inductor of inductance 2 mH is connected to a 220 V, 50 Hz ac source. Let the inductive reactance in the circuit is X₁. If a 220 V dc source replace the ac source in the circuit, then the inductive reactance in the circuit is X₂. X₁ and X₂ respectively are :

0.628 $$\Omega$$, infinity

6.28 $$\Omega$$, zero

6.28 $$\Omega$$, infinity

0.628 $$\Omega$$, zero

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

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

2 A

0.707 A

1 A

1.414 A

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

The peak voltage of the ac source is equal to

The value of voltage supplied to the circuit

The rms value of the ac source

$$\sqrt2$$ times the rms value of the ac source

1/$$\sqrt2$$ times the rms value of the ac source

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

A series LCR circuit with inductance 10 H, capacitance 10 $$\mu$$F, resistance 50 $$\Omega$$ is connected to an ac source of voltage, V = 200sin(100t) volt. If the resonant frequency of the LCR circuit is v₀ and the frequency of the ac source is v, then

$${v_0} = v = 50$$ Hz

$${v_0} = v = {{50} \over \pi }$$ Hz

$${v_0} = {{50} \over \pi }$$ Hz, $$v = 50$$ Hz

$$v = 100$$ Hz, $${v_0} = {{100} \over \pi }$$ Hz

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