A square loop of side 'a' lying in a perpendicular magnetic field to its plane is changed to a circle. If change occurs in 't' seconds in magnetic field B tesla, the induced emf is
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
4πBa2t
b
Ba2t
c
Ba2t[4π−1]
d
Zero
answer is C.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
Perimeter of square loop=circumference of circular loop4a=2πr⇒r=2aπ A1=a2; A2=πr2=π(2aπ)2=4a2π induced emf e=B(A2−A1)t e=Ba2t[4π−1]