Physics-Faraday's Laws
NEET Physics Faraday's Laws MCQ Question
Type: MCQ-numerical-Easy-Class 12
A coil of 50 turns experiences a change in magnetic flux from 0.2 Wb to 0.1 Wb in 0.5 seconds. What is the magnitude of the induced emf?
A
5 V
B
10 V
C
2 V
D
1 V
Correct Answer
Option A
Detailed Explanation
Using Faraday's law of electromagnetic induction, the induced emf is calculated as ε = -N * (ΔΦ/Δt). Here, N = 50, ΔΦ = 0.1 - 0.2 = -0.1 Wb, and Δt = 0.5 s. Thus, |ε| = 50 * (0.1/0.5) = 5 V.
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