A) magnetic pole
B) equator
C) \[\operatorname{at} altitude of 60{}^\circ \]
D) \[\operatorname{at} altitude of 45{}^\circ \]
Correct Answer: A
Solution :
At magnetic pole, total intensity of earth?s magnetic field is along the vertical. \[\therefore \] It has no horizontal component. Hence, the work done will be zero.You need to login to perform this action.
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