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Name the materials which are used to mak...

Name the materials which are used to make permanent magnets.

A

Soft iron

B

Germanium

C

Silicon

D

Steel

Text Solution

Verified by Experts

The correct Answer is:
D
Steel is used to make permanent magnets and soft iron is used to make temporary magnets.
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AGRAWAL EXAM CART BIHAR-CHEMICAL EFFECTS OF ELECTRIC CURRENT AND ELECTROPLATING -JNV Previous Years (2007-2020) Questions
  1. On heating one end of iron rod, other end also gets heated. Such mater...

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  2. The fuse wire is made of:

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  3. Name the materials which are used to make permanent magnets.

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  4. Gases are conductor of electricity :

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  5. By which copper is purified ?

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  6. The north pole of earth magnet is in the :

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  7. The vessel used for electric decomposition-

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  8. Flash bulbs contain a foil of magnesium packed in the atmosphere of

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  9. 55 Watt lamp is combined with the main wire of 220 volt, The current i...

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  10. Electric current is measured using which of the following instrument ?

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  11. Transformer are used:

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  12. Choose the correct statement related to magnet: (i) In magnet there...

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  13. When the glass rod is rubbed with the piece of silk, then according to...

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  14. Some electric terms are given: (i) Electric Fuse (ii) Electric Motor (...

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  15. Some circuit components have been indicated below: Out of these t...

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  16. The filament of an electric bulb is made of

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  17. Dynamo is a machine, the work of which is :

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  18. What is the apparatus used in measuring the electric current ?

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  19. What is the electrode called which is joined at -ve pole of the batter...

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