Question

why do two parallel conductors placed near by carrying current in same direction attract each other​

Answer 1

$\mathfrak\red{★Answer:}$

$\implies$Two parallel wires carrying currents in the same direction attract each other due to magnetic interaction between two wires carrying currents because the current in a wire produces a magnetic field and the magnetic interaction is of attractive nature when current in the two parallel wires is in the same direction.

★Explanation :

$\implies$Let wire on RHS carry current vertically upwards and wire on LHS carries current vertically upwards then the direction of magnetic field at a position where RHS wire is there due to LHS wire is inside the plane. Now RHS wire is a current carrying conductor placed in a magnetic field due to LHS wire. Similarly LHS wire is a current carrying conductor placed in a magnetic field due to RHS wire.

Therefore, they both will experience force.

★Now in RHS wire current is vertically upwards and direction of magnetic field is inside the plane. Since direction of force is given by:

$F=$$dl$ × $B$

$\implies$ therefore, force acting on RHS wire is towards left and by applying similar method we find that force acting on LHS wire is towards right. Therefore, they both attract each other and the cause is magnet forces acting between them.

Answer 2

Answer:

Two parallel wires carrying currents in the same direction attract each other due to magnetic interaction between two wires carrying currents because the current in a wire produces a magnetic field and the magnetic interaction is of attractive nature when current in the two parallel wires is in the same direction. <br> The two beams of electrons travelling in the same direction will be a source of both an electric and magnetic fields. Due to magnetic interaction, there will be force of attraction between the two moving electrons but due to electrostatic interaction, there will be a force of repulsion between them. If the beams of electrons are moving slowly, the electrostatic force of repulsion between the electrons dominates the magnetic attraction between them.

Explanation:

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