Question

At time magnetic field of Gauss is passing perpendicularly through the area defined by the closed loop shown in the figure. If the magnetic field reduces linearly to Gauss, in nest , then induced EMF in the loop is:

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A

B

C

D

Medium
JEE Mains
Updated on : 2022-09-05
Solution
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Correct option is C)

Area of loop area of rectangle Area of triangle Area of triangle  

Required area


Magnetic flux passing through an area is given by 


Here, and is constant throughout the area.




Also,


Since the flux changes linearly,

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