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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A fixed horizontal wire carries a current of 200 A. Another wire having a mass per unit length 10−2 kg/m is placed below the first wire at a distance of 2 cm and parallel to is. How much current must be passed through the second wire if it floats in air without any support? What should be the direction of current in it?

A fixed horizontal wire carries a current of 200 A. Another wire having a mass per unit length 10−2 kg/m is placed below the first wire at a distance of 2 cm and parallel to is. How much current must be passed through the second wire if it floats in air without any support? What should be the direction of current in it?

A and B are two conductors carrying a current i in the same direction x and y are two electron beams moving in the same direction. There will be :