Two circular coils A and B having number of turns 3N and N respectively and carrying equal currents in same sense are placed coaxially, such that they subtend the same solid angle at O. Let B0 be the magnetic field at O due to smaller coil B, then
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
Magnetic field at O due to larger coil is 33B0
b
Magnetic field at O due to larger coil is B0
c
Net magnetic field at O is 2B0
d
Net magnetic field at O is zero
answer is B.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
Due to smaller coil B0=μ04π2I(πR2)N(R2+x2)3/2Due to larger coil B'=μ04π2I(9πR2)3N[(3R)2+(3x)2]3/2=2727B0=B0