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  • When a current carrying coil is palced in a uniform magnetic field with its magnetic moment antiparallel to the field Option: 1 Torque is maximu

When a current carrying coil is palced in a uniform magnetic field with its magnetic moment antiparallel to the field 

Option: 1

Torque is maximum 


Option: 2

Torque is 0


Option: 3

U will be max 


Option: 4

unstable equilibrium 


Answers (1)

best_answer

As we have learned

Potential energy of current carrying coil -

U=-MB\cos \theta

U=-\underset{M}{\rightarrow}.\underset{B}{\rightarrow}

-

 

 given \theta = 180 \degree , \tau = mB\sin \theta = 0 \,\: U = -MB\cos \theta = +MB (max)

 

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Gunjita

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