Test Index

JEE Advanced Model Paper 12 with solutions for online practice

© examsnet.com

Question : 18

Total: 60

A circular conducting loop of Radius 'r0' and having resistance per unit length ’λ ’ as shown in the figure is placed in a magnetic field B which is constant in space and time. The ends of the loop are crossed and pulled in opposite directions witha velocity ’υ' such that the loop always remains circular and the radius of the loop goes on decreasing then

Radius of the loop changes with r = r0 -
√t
π
EMF induced in the loop as a function of time is 2Bυ (r0−
υt
π
)
Current induced in the loop is
Bυ
2πλ
Current induced in the loop is
Bυ
πλ

Go to Question:

Prev Question

Next Question