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A circular flat coil that has N turns, encloses an area A, and carries a current i has its central axis parallel to a uniform magnetic field B in which it is immersed.

The net torque on the coil is ____.


a) iBA

b) NiA

c) NiB

d) NiAB

e) Zero

Respuesta :

Answer:

Torque on the coil will be ZERO

Explanation:

As we know that the magnetic moment of the closed current carrying coil is always along its axis and it is given as

[tex]M = N i A[/tex]

now we know that magnetic field is also along the axis of the coil so here as we know the equation of torque given as

[tex]\tau = \vec M \times \vec B[/tex]

so we have

[tex]\tau = M B sin0[/tex]

[tex]\tau = 0[/tex]

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