1
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1

An emf is generated by an ac generator having 100 turn coil, of loop area $$1 \mathrm{~m}^2$$. The coil rotates at a speed of one revolution per second and placed in a uniform magnetic field of $$0.05 \mathrm{~T}$$ perpendicular to the axis of rotation of the coil. The maximum value of emf is :-

A
3.14 V
B
31.4 V
C
62.8 V
D
6.28 V
2
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1

For very high frequencies, the effective impedance of the circuit (shown in the figure) will be:-

NEET 2023 Manipur Physics - Electromagnetic Induction and Alternating Current Question 5 English

A
4 $$\Omega$$
B
6 $$\Omega$$
C
1 $$\Omega$$
D
3 $$\Omega$$
3
NEET 2023
MCQ (Single Correct Answer)
+4
-1

In a series LCR circuit, the inductance $$L$$ is $$10 ~\mathrm{mH}$$, capacitance $$C$$ is $$1 ~\mu \mathrm{F}$$ and resistance $$R$$ is $$100 ~\Omega$$. The frequency at which resonance occurs is :-

A
15.9 kHz
B
1.59 rad/s
C
1.59 kHz
D
15.9 rad/s
4
NEET 2023
MCQ (Single Correct Answer)
+4
-1

The net magnetic flux through any closed surface is :

A
Positive
B
Infinity
C
Negative
D
Zero
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