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Soft iron is used for making electromagn...

Soft iron is used for making electromagnet because it

A

Magnetic permeability is high and retentivity and coercive force are small

B

Retentivity is high

C

Coericive force is high

D

Area of the hysteresis curve is large

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The correct Answer is:
A
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AAKASH INSTITUTE-MAGNETISM AND MATTER -ASSIGNMENT (SECTION A)
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  6. A dip needle lies initially in the magnetic merdian when it shows an a...

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  7. The real angle of dip, if a magnet is suspended at an angle of 30^(@) ...

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  8. A dip needle free to move in a vertical plane perpendiculr to the magn...

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  9. If theta1 and theta2 be the apparent angles of dip observed in two ver...

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  10. How many neutral points will be obtained when a bar magnet is kept wit...

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  11. Time period of cillations of a magnet of magnetic moment M and moment ...

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  12. A magnet is suspended in such a way that it oscillates in the horizont...

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  14. The magnetic induction and magnetising field intensity in a sample of ...

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  16. When a ferromagnetic material is heated to temperature above its Curie...

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