2 circular loops of equal radii are placed coaxially at some separation.The first is cut and a battery is inserted to drive a curent in it .The current changes slightly due to the variation in resistance with temperature.During this period , the loops ,[a]attract each oder[b) Repel each oder[c] do not exert any force on each oder[d]attract or repel each other depending on the sense of the current .

Shane Macguire , 11 Years ago

Grade upto college level