Question

Force between current-carrying wires:
(a) Derive an expression for the magnitude of the force between two current-carrying wires of length l that are separated by a fixed distance D.

(b) If the currents are parallel to each other, is the force between the wires attractive or repulsive? Use the various right-hand rules to justify your answer.

Answer 1

Biz magnetic vield on iz due to c = choll is due to ej = B, iz = bociez Per unit length Using Right hand rule, Force is along (dla x Bi) is Towards Force on and Left B2= hoiz Force / length=hotiiz If the in same direction, they well attract each other. If the currents are in opposite direction, they will repel each b Currents are Other.