Home
Class 12
PHYSICS
A small coil of N turns has area A and a...

A small coil of `N` turns has area `A` and a current `I` flows through it. The magnetic dipole moment of this coil will be

A

iNA

B

`i^(2)NA`

C

`iN^(2)A`

D

`IN//A`

Text Solution

Verified by Experts

The correct Answer is:
1
Promotional Banner

Similar Questions

Explore conceptually related problems

A circular coil of wire n turns has a radius r and carries a current I . Its magnetic dipole moment is M .Now the coil is unwound and again rewound into a circular coil of half the initial radius and the same current is passed through it, then the dipole moment of this new coil is 1

A circular coil of wire "n" turns has a radius "r" and carries a current "I" . Its magnetic dipole moment is "M" .Now the coil is unwound and again rewound into a circular coil of half the initial radius and the same current is passed throught is, then the dipole moment of this new coil is

the inductance of a closed-packed coil of 400 turns is 8mH . A current of 5mA is passed through it. The magnetic flux through each turn of the coil is

A uniform conducting wire of length length 10a and resistance R is wound up into four turn as a current carrying coil in the shape of equilateral triangle of side a. If current I is flowing 4 through the coil then the magnetic moment of the coil is

The electric current in a circular coil of two turns produced a magnetic induction of 0.2 T at its centre. The coil is unwound and then rewound into a circular coil of four turns. If same current flows in the coil, the magnetic induction at the centre of the coil now is

A circular coil 'A' has a radius R and the current flowing through it is I.Another circular coil 'B' has a radius 2R and if 2I is the current flowing through it then the magnetic fields at the centre of the circular coil are in the ratio of

A circular coil 'A' has a radius R and the current flowing through it is I.Another circular coil 'B' has a radius 2R and if 21is the current flowing through it then the magnetic fields at the centre of the circular coil are in the ratio of

A circular coil 'A' has a radius R and the current flowing through it is I.Another circular coil 'B' has a radius 2R and if 21is the current flowing through it then the magnetic fields at the centre of the circular coil are in the ratio of

A circular coil of diameter 7cm has 24 turns of wire carrying current of 0.75A . The magnetic moment of the coil is