the work done in turning a magnet of magnetic moment m by an angle of 90 degree from the Mediterranean is N times the corresponding work done to turn it through an angle of 60 degree the value of n is given by
Answers
Answered by
56
Q]____?
Explanation:
work done in rotating a dipole from θ1 to θ2 is
W = - MB ( cos θ2 - cos θ1 )
[ M = Magnetic moment
B = Magnetic induction ]
CASE I
W1 = MB ( cos 60° - cos0° ) = MB _[i]
CASE II
W2 = - MB ( cos 60° - cos 0° )
W2 = - MB [ 1/2 - 1 ] = 1/2 MB _[ii]
From Eqs [i] and [ii] W2 = 1/2 W1
As W1 = nW2
∴ n = 2
∴ The value of n is 2 !
Answered by
5
Refer to the above attachment .
Attachments:
Similar questions