Question

Two long, parallel wires are separated by 8.31 cm8.31 cm and carry currents of 1.23 A1.23 A and 3.37 A3.37 A, respectively. Find the magnitude of the magnetic force ?F that acts on a 2.57 m2.57 m length of either wire.

Answer 1

As given,

Gap between two parallel wires (d) = 8.31 cm = 0.0831 m

Current in first wire (I₁) = 1.23 A

Current in second wire (I₂) = 3.37 A

Length of either wire (L) = 2.57 m

Only magnitude of force is to be calculated. So, anti parallel or parallel flow of current in the wires do not affect the magnitude of the force, only the attractive or repulsive force is affected by the current direction.

The magnitude of the magnetic force (F) =