NEETPhysics-Electromagnetic Induction
NEET Physics Induced EMF MCQ Question
Type: MCQ-numerical-Hard-Class 12
A wheel with 10 metallic spokes each 0.5 m long is rotated with a speed of 120 rev/min in a plane normal to the earth's magnetic field at the place. If the magnitude of the magnetic field is 0.4 G, what is the induced emf between the axle and the rim of the wheel?
A
1.256 × 10⁻³ V
B
6.28 × 10⁻⁴ V
C
1.256 × 10⁻⁴ V
D
6.28 × 10⁻⁵ V
Correct Answer
Option 1
Detailed Explanation
Using the formula for induced emf in a rotating wheel, the emf is calculated to be 1.256 × 10⁻³ V.
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