Question

Two long and parallel straight wires A and B carrying current of 6A and 4A in the opposite direction are separated by a distance of 4cm .estimate the force on a 10cm straight wire A and also write the nature of force between them

Answer 1

Answer:

Current in wire A, I 1 = 6A

Current in wire B , I2 =4A

We know that ,

F=uo× I1× I2×l ÷2×π×r

F=( 4 π×10∧-7)×6×4×0.1÷2π×0·4

F=0.96×10∧-7

Attractive force normal to A towards B, because current direction same.