Two parallel conductors carrying currents in the same direction attract each other-explain with reason.

When two conducting wires used to attract each other?

Two long and parallel stright A and B carrying currents of 8.0A and 5.0A in the same direction are separted by a distance of 4.0cm . Estimate the force on a 10 cm section of wire A.

Two long parallel wires carrying current 2.5 ampere and 1 ampere in the same direction (directed into the plane of the paper) are held at P and Q respectively, such that they are perpendicular to the plane of the paper. The point P and Q are located at a distance of 5 metres and 2 metres respectively from collinear point R as shown below. (ii) Find all the positions at which a third long parallel wires carrying of magnitude 2.5 ampere may be placed, so that the magnetic induction at R be zero

Consider two infinitely long wires parallel to Z-axis carrying same current I in the incitive z direction. One wire passes through the point L at coordinates (-1, +1) and the other wire passes through the point M at coordinates (-1, -1). The resultant magnetic field at the origin O will be

Two long straight parallel conducts carrying steady currents I_(1) and I_(2) are separated by a distance d. Explain briefly with the help of suitable diagram, how the magnetic field due to one conductor acts on the other. Hence deduce the expression for the force acting between the two conductors. Mention the nature of this force.

Two long straight conducting wires ara kept parallel to each other at a distance r apart. When a current I passes through both the wires in the same direction, a force of attraction vecF acts between the wires. Which of the following statement is/are true?

Two parallel coaxial circular coils of equal radius R and equal number of turns N, carry N carry equal currents I in the same direction and are separated by a distance 2R. Find the magnitude and direction of the magnetic field produced at the mid point of the joining their centres.

If the force between the two parallel wires having carrying current, is F, then what will be the force if the current is doubled?