Home
Class 12
PHYSICS
Two long wires, carrying currents i1 an...

Two long wires, carrying currents ` i_1 and i_2,` are placed perpendicular to each other in such a way that they just avoid a contact. Find the magnetic force on a small length dl of the second wire situated at a distance l from the first wire. (figure)

Text Solution

Verified by Experts

The situation is shown in figure.The magnetic field at the site of `dl` due to the first wire is `B=(mu_(0)i_(1))/(2pil)`
This field is perpendicular to the plane of the figure going into it.The magnetic force on the length `dl` is,
`dF=i_(2)dlB sin 90^(@)= (mu_(0)i_(1)i_(2)dl)/(2pil)`
This force is parallel to the current `i_(1)`
Promotional Banner

Topper's Solved these Questions

  • ELECTRODYNAMICS

    RESONANCE ENGLISH|Exercise Exercise-1 PART-1|83 Videos

  • ELECTRODYNAMICS

    RESONANCE ENGLISH|Exercise Exercise-1 PART-2|54 Videos

  • ELECTRODYNAMICS

    RESONANCE ENGLISH|Exercise Advanced level problems|31 Videos

  • ELECTRO MAGNETIC WAVES

    RESONANCE ENGLISH|Exercise Exercise 3|27 Videos

  • ELECTROMAGNETIC INDUCTION

    RESONANCE ENGLISH|Exercise A.l.P|19 Videos

Similar Questions

Explore conceptually related problems

Two wires carrying equal currents i each, are placed perpendicular to each other, just avoiding a contact. If one wire is held fixed and the other is free to move under magnetic forces, what kind of motion wil results?

If two straight current carrying wires are kept perpendicular to each other almost touching then the wires

Two long wire AB abd CD carry currents i_(1) and i_(2) in the direactions show in figure

Wires 1 and 2 carrying currents i_1 and i_2 respectively are inclined at an angle theta to each other. What is the force on a small element dl of wire 2 at a distance of r from wire 1 (as shown in the figure) due to the magnetic field of wire 1 ?

A rod of length l is placed perpendicular to a long wire carrying current i . The rod is moved parallel to the wire with a velocity v . Find the emf induced in the rod, if its nearest end is at a distance a from the wire.

A rod of length l is placed perpendicular to a long wire carrying current i . The rod is moved parallel to the wire with a velocity v . Find the emf induced in the rod, if its nearest end is at a distance a from the wire.

Figure. Shows two long wires carrying equal currents I_1 and I_2 flowing in opposite directions. Which of the arrows labeled A to D correctely represents the direction of the magnetic field due to the wires at a point located at an equal distance d from each wire?

A segment AB of wire carrying current I_1 is placed perpendicular to a long straight wire carrying current I_2 as shown in figure. The magnitude of force experieced by the straight wire AB is

Two long parallel wires carry equal current I flowing in the same direction are at a distance 2d apart. The magnetic field B at a point lying on the perpendicular line joining the wires and at a distance x from the midpoint is

The long, staight wires, each carrying an electric current of 5.0 A, are kept parallel to each other at a separation of 2.5 cm. Find the magnitude of the magnetic force experienced by 10 cm of a wire.