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प्रश्न
If the magnetizing field on a ferromagnetic material is increased, its permeability ______.
पर्याय
decreases
increases
remains unchanged
first decreases and then increases
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उत्तर
If the magnetizing field on a ferromagnetic material is increased, its permeability decreases.
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संबंधित प्रश्न
An iron rod of the area of cross-section 0.1m2 is subjected to a magnetizing field of 1000 A/m. Calculate the magnetic permeability of the iron rod. [Magnetic susceptibility of iron = 59.9, magnetic permeability of vacuum = 4π x 10-7 S. I. unit]
The susceptibility of magnesium at 200 K is 1.8 x 10-5. At what temperature will the susceptibility decrease by 6 x 10-6?
Distinguish between diamagnetic and paramagnetic substances.
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?
Choose the correct option:
A rectangular magnet suspended freely has a period of oscillation equal to T. Now it is broken into two equal halves (each having half of the original length) and one piece is made to oscillate freely. Its period of oscillation is T′, the ratio of T′/T is ______.
The product of magnetic susceptibility (`chi`) and absolute temperature (T) is constant for a ____________.
Which of the following property shows the property of ferromagnetic substances?
Explain ferromagnetism on the basis of the domain theory.
Explain the meaning of the following statement:
Curie temperature for soft iron is 770°C.
