Question

Two parallel wires are carrying electric currents of equal magnitude and in the same direction. They exert:

• A. A rotational torque on each other
• B. A repulsive force on each other
• C. An attractive force on each other
• D. None of these

Answer 1

The correct option is C An attractive force on each other

If the currents are in the same direction, the force attracts the wires. If the currents are in opposite directions, the force repels the wires.