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

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
MCQ (Single Correct Answer)
+4
-1
Change Language

The net magnetic flux through any closed surface is :

A
Positive
B
Infinity
C
Negative
D
Zero
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-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

A
192 V
B
108 V
C
197 V
D
150 V
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

A square loop of side 1 m and resistance 1 $$\Omega$$ is placed in a magnetic field of 0.5 T. If the plane of loop is perpendicular to the direction of magnetic field, the magnetic flux through the loop is

A
2 weber
B
0.5 weber
C
1 weber
D
Zero weber
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