Prove that two parallel current elements exert equal and opposite force on each other.

Two current elements are placed a certain distance apart but not parallel to each other. Do they exert equal and opposite forces on each other?

Explain why two parallel wires carrying currents in opposite directions repel each other.

The two linear parallel conductors carrying currents in the opposite direction…………………each other.

The two linear parallel conductors carrying currents in the opposite direction…………………each other.

Prove that two angles attached to the parallel sides of any isosceles trapezium are equal to each other .

Prove that if two lines intersect each other, then the vertically opposite angles are equal.