Home
Class 12
PHYSICS
The material suitable for making electro...

The material suitable for making electromagnets should have

A

high retentivity and low coercivity

B

low retentivity and low coercivity

C

high retentivity and high coercivity

D

low retentivity and high coercivity

Text Solution

Verified by Experts

The correct Answer is:
A
Electromagnet should have a property to give magnetising and demagnetising action very fast with the change in the magnetising field, for this it should have very low coercivity, but with the increase in current field increases and to make a strong magnet, retentivity should be higher
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • NTA TPC JEE MAIN TEST 108

    NTA MOCK TESTS|Exercise PHYSICS (SUBJECTIVE NUMERICAL)|10 Videos

  • NTA TPC JEE MAIN TEST 110

    NTA MOCK TESTS|Exercise PHYSICS |29 Videos

Similar Questions

Explore conceptually related problems

Material used for preparing electromagnet should have high retentivity and high coercivity.

(a) How is an electromagnet different from a permanent magnet? (b) Write two properties of a material which make it suitable for making electromagnets.

Knowledge Check

  • The materials suitable for making electromagnets should have

    A
    high retentivity and high coercivity.
    B
    low retentivity and low coercivity.
    C
    high retentivity and low coercivity.
    D
    low retentivity and high coercivity.

  • The materials suitable for making a solar cell is

    A
    PbS
    B
    GaAs
    C
    CdSe
    D
    Ge

  • Best matter for making electromagnet is:

    A
    Soft iron
    B
    Steel
    C
    Nickel
    D
    Cobalt

    • Similar Questions

    Explore conceptually related problems

    Why should the material used for making permanent magnets have high coercivity ?

    Which material is used to make electromagnets and why?

    Which of the following material is used for making an electromagnet ? Iron or Steel

    The material for making permanent magnets should have:

    The materials for the construction of electromagnet should have

    Home
    Profile