The work done in, deflecting a compass needle of magnetic moment M through an angle θ from its equilibrium position is [ H= horizontal] component of the earths magnetic field

Question

The work done in, deflecting a compass needle of magnetic moment M through an angle θ from its equilibrium position is [ H= horizontal] component of the earths magnetic field (A)  MH sin θ  (B)  MHcosθ  (C)  MH(1- sin θ )  (D)  MH (1- cos θ )

Tardigrade Admin · Accepted Answer

Work done in deflecting the needle of magnetic moment M in magnetic field it W=MH (1- cos θ )

Q. The work done in, deflecting a compass needle of magnetic moment M through an angle $θ$ from its equilibrium position is [ $H =$ horizontal] component of the earths magnetic field

$M H sin θ$

$M Hcos θ$

$M H (1 - sin θ)$

$M H (1 - cos θ)$

Work done in deflecting the needle of magnetic moment M in magnetic field it $W = M H (1 - cos θ)$

Q. The work done in, deflecting a compass needle of magnetic moment M through an angle θ from its equilibrium position is [ H= horizontal] component of the earths magnetic field

MHsinθ

MHcosθ

MH(1−sinθ)

MH(1−cosθ)