In a two dimensional x – y plane, the magnetic field lines are circular, centred at the origin. The magnitude of the field is inversely proportional to distance from the origin and field at any point P has magnitude given by B = k /r, where k is a positive constant. A wire carrying current I is laid in xy plane with its ends at point A (x_(1), y_(1) and point B (x_(2)), y_(2)). Find force on the wire.

In a two dimensional x – y plane, the magnetic field lines are circu

1.	In a two dimensional x – y plane, the magnetic field lines are circular, centred at the origin. The magnitude of the field is inversely proportional to distance from the origin and field at any point P has magnitude given by B = k /r, where k is a positive constant. A wire carrying current I is laid in xy plane with its ends at point A (x_(1), y_(1) and point B (x_(2)), y_(2)). Find force on the wire.
Answer» Answer :`VEC(F)=(kl)/2 l n(x_(2)^(2)+y_(2)^(2)/x_(1)^(2)+y_(1)^(2)) HAT(k)`

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