JEE Main 2020 — Electromagnetic Induction Question with Solution
From: JEE Main 2020 (Online) 8th January Morning Slot
Question
At time t = 0 magnetic field of 1000 Gauss is
passing perpendicularly through the area
defined by the closed loop shown in the figure.
If the magnetic field reduces linearly to
500 Gauss, in the next 5s, then induced EMF
in the loop is :
This question includes a diagram. The text above accompanies the figure.
Choose an option
Show full solutionCorrect option: C
Correct answer
C56 μV
Step-by-step explanation
Area of loop = ( 16 × 4 – 2 × Area of triangle) cm2
= cm2
= 56 × 10–4 m2
Using faraday law Induced EMF
|||
= 56 × 10–4
= 56 × 10–6 V = 56 V
= cm2
= 56 × 10–4 m2
Using faraday law Induced EMF
|||
= 56 × 10–4
= 56 × 10–6 V = 56 V
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