A circular coil ABCD carrying a current i is placed in a

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A circular coil ABCD carrying a current i is placed in a uniform magnetic field. If the magnetic force on the segment AB is , ^→_F the force on the remaining segment BCDA is

1. ^→_F
2. -^→_F
3. 3^→_F
4. -3^→_F

Correct Option: B

Here, ^→_F_AB + ^→_F_BCDA = ^→₀
= ^→_F_BCDA = - ^→_F_AB^→_F
(∵ ^→_F_AB = ^→_F)