Questions
The magnetic field due to the earth is closely equivalent to that due to
a
A large magnet of length equal to the diameter of the earth
b
A magnetic dipole placed at the centre of the earth
c
A large coil carrying current
d
Neither of the above
detailed solution
Correct option is A
The magnetic field due to the earth is closely equivalent to that due to a large magnet of length equal to diameter of the earth.Talk to our academic expert!
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