A short bar magnet is placed horizontally in N-S direction,with its N-pole pointing to south of earth.In this case,the null poin

A short bar magnet is placed horizontally in N-S direction,with its N-pole pointing to south of earth.In this case,the null point on its axis is obtained if
A. `B_(eq)=B_(H)`
B. `B_("axis")=B_(H)`
C. `B_(eq)=2B_(H)`
D. `B_(axis)=2B_(H)`

A short bar magnet is placed horizontally in N-S direction,with its N-pole pointing to south of earth.In this case,the null point on its axis is obtai

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