1
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

A closely packed coil having 1000 turns has an average radius of 62.8 cm. If current carried by the wire of the coil is 1 A, the value of magnetic field produced at the centre of the coil will be (permeability of free space $$ = 4\pi \times {10^{ - 7}}$$ H/m) nearly

A
10$$-$$3 T
B
10$$-$$1 T
C
10$$-$$2 T
D
102 T
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

Given below are two statements

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

Statement II : In a.c circuit containing pure capacitance only, the phase difference between the current and voltage is $$\pi$$.

In the light of the above statements, choose the most appropriate answer from the options given below

A
Statement I is incorrect but Statement II is correct
B
Both Statement I and Statement II are correct
C
Both Statement I and Statement II are incorrect
D
Statement I is correct but Statement II is incorrect
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-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 :

A
0.628 $$\Omega$$, infinity
B
6.28 $$\Omega$$, zero
C
6.28 $$\Omega$$, infinity
D
0.628 $$\Omega$$, zero
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

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

A
2 A
B
0.707 A
C
1 A
D
1.414 A
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