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A copper wire of diameter 1.6mm carries

+3 votes

asked Dec 15, 2018 in JEE by kratos

A copper wire of diameter 1.6mm carries a current of 20A. Find the maximum magnitude of the magnetic field vector B due to this current.

magnetic field due to current
thin cylindrical
spherical shells
stresses and strains
jee
magnetic effect of current
jee mains
magnetism
class-12

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1 Answer

+3 votes

answered Jan 23, 2021 by kratos

Best answer

d = 1.6mm

So, r = 0.8mm = 0.0008m

i = 20A

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