the work done in turning a magnet of magnetic moment m by an angle of

1.	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
Answer» 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 !

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

Answer»

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 !

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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​