An insulting thin rod of length has a x linear charge density p(x)=  on it. The rod is rotated about an axis passing through the origin (x=0) and the perpendicular to the rod. If the rod makes n rotations per second, then the time averaged magnetic moment of the rod is : (a) nρ (b)   (c)   (d)

Question ID - 50238 :- An insulting thin rod of length has a x linear charge density p(x)=  on it. The rod is rotated about an axis passing through the origin (x=0) and the perpendicular to the rod. If the rod makes n rotations per second, then the time averaged magnetic moment of the rod is : (a) nρ (b)   (c)   (d)

3537

$\because$ M = NIA

dq=

dx.

M= . .dx = .

M=  or

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