Advertisements
Advertisements
प्रश्न
Give two points to distinguish between a paramagnetic and a diamagnetic substance ?
Advertisements
उत्तर
| Paramagnetic substance | Diamagnetic substance |
| 1. A paramagnetic substance is feebly attracted by a magnet. 2. For a paramagnetic substance, the intensity of magnetisation has a small positive value |
1. A diamagnetic substance is feebly repelled by a magnet. 2.For a diamagnetic substance, the intensity of magnetisation has a small negative value. |
संबंधित प्रश्न
The magnetic intensity H at the centre of a long solenoid carrying a current of 2.0 A, is found to be 1500 A m−1. Find the number of turns per centimetre of the solenoid.
Answer the following question.
Define the term "Intensity" in the photon picture of electromagnetic radiation.
What does the ratio of magnetization to magnetic intensity indicate?
A solenoid has core of a material with relative permeability 500 and its windings carry a current of 2 A. The number of turns of the solenoid is 500 per metre. The magnetization of the material is ______.
A bar magnet has coercivity 6 x 103 Am-1. It is desired to demagnetise it by inserting it inside a solenoid 10 cm long and having 40 turns. The current that should be sent through the solenoid is ____________.
The permeability of a metal is 0.01256 TmA- 1 What is its relative permeability?
A magnetizing field of 5000 A/m produces a magnetic flux of 4 x 10-5 Wb in an iron rod of cross-sectional area 0.4 cm2. The permeability of the rod in Wb/A-m, is ______.
Assertion: Susceptibility is defined as the ratio of intensity of magnetisation I to magnetic intensity H.
Reason: Greater the value of susceptibility, smaller the value of intensity of magnetisation I.
The magnetic moment produced in a sample of 2 gram is 8 x 10-7 A/m2. lf its density is 4g/cm3, then the magnetization of the sample is ____________.
State SI unit of Magnetization.
