NEET 2022 Phase 2 | Electromagnetic Induction and Alternating Current Question 14 | Physics

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 2

MCQ (Single Correct Answer)

-1

The magnetic flux linked to a circular coil of radius R is

$$\phi = 2{t^3} + 4{t^2} + 2t + 5$$ Wb

The magnitude of induced emf in the coil at t = 5 s is

192 V

108 V

197 V

150 V

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

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