divyladha... u also think just like these insti. ppl.... all of u just analyse jee probs. as if they r peace of cake.... SORRY to say dude... but in the magnetic field ques. the inner loop will contract due to forces directed towards its center and outer loop will expand due to forces directed away from center.... hence the two loops can be easily seen repelling... this is a case of repulsion only... Now tell me who's concepts r weak.... mine or urs??