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in a circular coil of radius r the magnetic field at the centre is proportional to A r^2 B r C 1/r D 1/r^2

in a circular coil of radius r the magnetic field at the centre is proportional to 
A r^2
B r
C 1/r
D 1/r^2

Grade:11

1 Answers

Khimraj
3007 Points
3 years ago
B = (uonI/2)*r2/(x2 + r2)3/2
At centre x = 0
so magnetic field at the centre is proportional to 1/r......................................

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