Question

Horizontal component of earth's magnetic field at a place is uniform and its direction is south to non
A high current through a horizontal power line flows at this place from west to east. Consider to
points A and B at equal distances from the wire, respectively above and below it. Giving reas
explain where is the field more A and B.
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Answer 1

Answer:

It depends upon the direction of the vertical component of the field at that place as explained under:

(A) Vertical component is vertically upwards: The the field is more at A as the direction of the field by the current carrying overhead wire will be in anti-closkwise direction (when viewed standing in the east) and will add up at point A while will be in opposition to the field at point B.

(B) Vertical component is vertically downwards: The the field is more at B as the direction of the field by the current carrying overhead wire will be in anti-closkwise direction (when viewed standing in the east) and will add up at point B while will be in opposition to the field at point A