A coil carrying current l has radius r...

A coil carrying current l has radius r and number of turns n it is rewound so that radis of new coil is `(r )/(4)` and it carries current l the ratio fo magenic moment of new coil to that of original coil is

`(1)/(2)`

`(1)/(4)`

`(1)/(8)`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

MAGNETISM
TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos
MAGNETISM
TARGET PUBLICATION|Exercise CRITICAL THINKING|24 Videos
MAGNETIC EFFECT OF ELECTRIC CURRENT
TARGET PUBLICATION|Exercise EVALUATION TEST|19 Videos
MODEL QUESTION PAPER
TARGET PUBLICATION|Exercise MODEL QUESTION PAPER -II|47 Videos

Similar Questions

Explore conceptually related problems

A coil carrying a current 'I' has radius 'r' and number of turns 'n' it is reqound so that radius of the new coil is (r )/(4) and it carries current I' The ratio of the magnetic moment of the new coil to that of the original coil is

A coil carrying current behaves as a/an

A coil of n turns and radius R carries a current I it is unwound and rewound to make a new coil of radius (R )/(2) and the same current is passed through it what is the ratio of the magnetic moment of the new coil and the original coil ?

A coil of length L, carries a current i. The magnetic moment of coil is proportional to

The direction of magnetic moment of a current carrying circular coil is

A circular coil of radius 10 cm "and" 100 turns carries a current 1A. What is the magnetic moment of the coil?

A coil of N turns and radius R carries a current I. It is unwound and rewound to make another coil of radius R//2 , current remaining the same. Calculate the ratio of magnetic moments of the new coil and the original coil.

A circular coil of n turns and radius R carries a current I. It is unwound and rewound to make another square coil of side ‘a’ keeping number of turns and current same. Calculate the ratio of magnetic moment of the new coil and the original coil.

A circular coil of N turns and radius R carries a current I. It is unwound and rewound to make another coil of radius R//2. Current I remaining the same. Calculate the ratio of the magnetic moments of the new coil and the original coil.

TARGET PUBLICATION-MAGNETISM-COMPETITIVE THINKING

A current I flows in a conducting wire of lenth L. If we bent it in a ...
Text Solution
|
A coil carrying current l has radius r and number of turns n it is r...
Text Solution
|
A circular coil of radius 10 cm "and" 100 turns carries a current 1A. ...
Text Solution
|
A bar magnet of length 10cm and having the pole strength equal to 10^(...
Text Solution
|
A bar magnet is held perpendicular to a uniform magnetic field. If the...
Text Solution
|
The rartio ("in" S 1 units) of magnetic dipole moment to that of the a...
Text Solution
|
The magnetic moment of electron due to orbital motion is proport...
Text Solution
|
A particle of charge q and mass m moves in a circular orbit of radius ...
Text Solution
|
Gyromagnetic ratio of the electron revolving in a circular orbit of hy...
Text Solution
|
If the angular momentum of an electron is vec(J) then the magnitude of...
Text Solution
|
If M(z) = magnetisation of paramagnetic sample B= external magnetic fi...
Text Solution
|
A bar magnet has length 3 cm, cross-sectional area 2 cm^(3) and magn...
Text Solution
|
Magnetic susceptibility of a paramagnetic substance is
Text Solution
|
The magnetic field (B) inside a long solenoid having n turns per unit ...
Text Solution
|
Relative permeability of iron is 5500, then its magnetic susceptibilit...
Text Solution
|
A bar magnet has coercivity 4xx10^(3) Am^(-1). It is desired to demagn...
Text Solution
|
An iron rod is placed parallel to magnetic field of intensity 2000 Am^...
Text Solution
|
A magnetizing field of 5000 A/m produces a magnetic flux of 5 xx 10^(-...
Text Solution
|
The magnetic moment of atomic neon is
Text Solution
|
The magnetic susceptibility is negative for
Text Solution
|