Home
Class 12
PHYSICS
The rectangular coil having 100 turns is...

The rectangular coil having 100 turns is placed in a uniform magnetic field of `(0.05/sqrt2) hat j` tesla as shown in Fig. 1.84. Find the torque acting on the loop.

Text Solution

Verified by Experts

The magnetic dipole moment of the current carrying coil is given
by `vecM=NIAhatn`
`=100xx0.5xx0.08xx0.04hati=0.16hatiAm^2`
The torque acting on the coil is
`vectau=vecMxxvecB=M(hatixxhatj)B=1.6xx10^-2xx0.05/(sqrt2)hatk`
`=5.66xx10^-3(Nm)hatk`
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC FIELD AND MAGNETIC FORCES

    CENGAGE PHYSICS|Exercise Exercises Subjective|10 Videos

  • MAGNETIC FIELD AND MAGNETIC FORCES

    CENGAGE PHYSICS|Exercise Exercises Single Correct|70 Videos

  • MAGNETIC FIELD AND MAGNETIC FORCES

    CENGAGE PHYSICS|Exercise Exercise 1.2|13 Videos

  • KINETIC THEORY

    CENGAGE PHYSICS|Exercise Question Bank|31 Videos

  • Magnetism and Matter

    CENGAGE PHYSICS|Exercise Question Bank|50 Videos

Similar Questions

Explore conceptually related problems

A rectangular coil of area vecA and number of turns n is placed in a uniform magnetic field vecB. If the coil carries a current I, then the torque acting on the coil is given by

A circular loop of radius a having n turns is kept in a horizontal plane. A uniform magnetic field B exists in a vertical direction as shown in Fig.313. Find the emf induced in the loop if the loop is roated with a uniform angualr velocity omega about (a) an axis passing through the center and perendicular to the plane of the loop. (b) the diameter.

Two current carrying closed loops having equal perimeters are placed in a uniform magnetic field as. Shown in the figure. What is the ratio of magnitude of torque acting on the loop [loop I is equilateral triangle and loop II is square]

A rectangular loop carrying a current i is placed in a uniform magnetic field B. The area enclosed by the loop is A. If there are n turns in the loop, the torque acting on the loop is given by

A circular coil of 25 turns and radius 12 cm is placed in a uniform magnetic field of 0.5 T normal to the plane of the coil. If the current in the coil is 6 A then total torque acting on the coil is

A circular coil of 20turns and radius 10cm carries a current of 5A . It is placed in a uniform magnetic field of 0*10T . Find the torque acting on the coil when the magnetic field is applied (a) normal to the plane of the coil (b) in the plane of coil. Also find out the total force acting on the coil.

A circular coil of 20 turns and radius 10cm is placed in uniform magnetic field of 0.10T normal to the plane of the coil.If the current coil is 5A ,then the torque acting on the coil will be: ?

A conducting circular loop of radius r carries a constant current i. It is placed in a uniform magnetic field B such that B is parallel to the plane of the loop. The magnetic torque acting on the loop is-

To double the torque acting on a rectangular coil of n turns, when placed in a magnetic field-