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JEE Main 202127 AugustMorning Shift
Exam
JEE Main
Year
2021
Date
27 August
Shift
Morning Shift
Subject
Physics
Chapter
Electromagnetic Induction

JEE Main 2021 · 27 August · Morning Shift · Physics · Electromagnetic Induction

A bar magnet is passing through a conducting loop of radius R with...

A bar magnet is passing through a conducting loop of radius RR with velocity v.v . The radius of the bar magnet is such that it just passes through the loop. The induced e.m.f. in the loop can be represented by the approximate curve:

A bar magnet is passing through a conducting loop of radius R with velocity v . The radius of the bar magnet is such A bar magnet is passing through a conducting loop of radius R with velocity v . The radius of the bar magnet is such

Options

  1. AIf y=( ^ -1 2 x)^2+( ^ -1 2 x)^2 , then (1-4 x^2) y_2-4 x y_1=
  2. BIf y=( ^ -1 2 x)^2+( ^ -1 2 x)^2 , then (1-4 x^2) y_2-4 x y_1=
  3. CIf y=( ^ -1 2 x)^2+( ^ -1 2 x)^2 , then (1-4 x^2) y_2-4 x y_1=
  4. DIf y=( ^ -1 2 x)^2+( ^ -1 2 x)^2 , then (1-4 x^2) y_2-4 x y_1=

Correct answer

C. If y=( ^ -1 2 x)^2+( ^ -1 2 x)^2 , then (1-4 x^2) y_2-4 x y_1=

Step-by-step solution

As Magnet is approaching toward the loop magnetic flux increases and Rate of increment of flux also increases so emf increases with time

A bar magnet is passing through a conducting loop of radius R with velocity v . The radius of the bar magnet is such at this moment emf is maximum and negative

A bar magnet is passing through a conducting loop of radius R with velocity v . The radius of the bar magnet is such Magnet is in middle of coil, at this moment emf is equal to zero

A bar magnet is passing through a conducting loop of radius R with velocity v . The radius of the bar magnet is such Now again flux start changing however polarity of emf get reverse

A bar magnet is passing through a conducting loop of radius R with velocity v . The radius of the bar magnet is such At this moment emf is again maximum

A bar magnet is passing through a conducting loop of radius R with velocity v . The radius of the bar magnet is such emf again become zero

A bar magnet is passing through a conducting loop of radius R with velocity v . The radius of the bar magnet is such

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