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प्रश्न
Which of the following substances are diamagnetic?
Bi, Al, Na, Cu, Ca and Ni
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उत्तर
Diamagnetic are those substances which when placed in a magnetic field are feebly magnetized in a direction opposite to that of the magnetizing field. Among the given elements Bi and Cu are diamagnetic substances.
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संबंधित प्रश्न
Distinguish between ‘paramagnetic’ and ‘ferromagnetic’ substances.
Which of the following substances are para-magnetic?
Bi, Al, Cu, Ca, Pb, Ni
Draw magnetic field line when a (i) diamagnetic, (ii) paramagnetic substance is placed in an external magnetic field. Which magnetic property distinguishes this behaviour of the field line due to the substances?
What happens to a ferromagnetic material when its temperature increases above curie temperature?
The product of magnetic susceptibility (`chi`) and absolute temperature (T) is constant for a ____________.
A certain region of space is to be shielded from magnetic fields. Suggest a method.
Assertion: The ferromagnetic substance do not obey Curie’s law.
Reason: At Curie point a ferromagnetic substance start behaving as a paramagnetic substance.
When a ferromagnetic material is created above its curie temperature
An ammeter of resistance R gives a full-scale deflection when a current of 2 A passes through it. If it is measured with a maximum current of 10 A, the required shunt is ______.
