1
NEET 2022 Phase 2
+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
2
NEET 2022 Phase 2
+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
3
NEET 2022 Phase 1
+4
-1

The peak voltage of the ac source is equal to

A
The value of voltage supplied to the circuit
B
The rms value of the ac source
C
$$\sqrt2$$ times the rms value of the ac source
D
1/$$\sqrt2$$ times the rms value of the ac source
4
NEET 2022 Phase 1
+4
-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

A
$${v_0} = v = 50$$ Hz
B
$${v_0} = v = {{50} \over \pi }$$ Hz
C
$${v_0} = {{50} \over \pi }$$ Hz, $$v = 50$$ Hz
D
$$v = 100$$ Hz, $${v_0} = {{100} \over \pi }$$ Hz
EXAM MAP
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