I have question A circular loop carrying current in anticlockwise direction in magnetic field upwards .What would be total force acting on it

do you mean magnetic field is out of the paper??

Dear rohit ,

the force on the current carrying wire is given by  f = i l x B   applying the result on every infinitesimally small part of ring and treating it as a wire.  take a wire of length dl then force on it is i dl B outwards from the loop . at every point the direction is same , outwards. therefore the forces cancels out. the diametrically opposite points nullify the effect of their respective points. so force is zero.

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