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Calculate the magnetic induction at P, for the arrangement shown in figure, when two similar short magnets of magnetic moment M are joined at the middle. So that they are mutually perpendicular - A. `(mu_(0)Msqrt3)/(4pi" "d^(3))`B. `(mu_(0)2M)/(4pi" "d^(3))`C. `(mu_(0)Msqrt5)/(4pid^(3))`D. None of these |
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Answer» Correct Answer - 3 B_("net")=sqrt(B_(1)^(2)+B_(2)^(2))` `B_(1)=(mu_(0)M)/(2pid^(3))` `B_(2)=(mu_(0)M)/(4pid^(3))` `B_("net")rArr(mu_(0)M)/(pid^(3))[(1)/(4)+(1)/(6)]rArr(sqrt5mu_(0)M)/(pid^(3))` |
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