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Electromagnets are made of soft iron bec...

Electromagnets are made of soft iron because soft iron has

A

low retentivity and high coercive force

B

high retentivity and high coerive force

C

low retentivity and low coercive

D

high retentivity and low coercive force

Text Solution

Verified by Experts

The correct Answer is:
C
Electromagnetics are made of soft iron because soft iron has low retentivity and lw coercive force or low coercivity . Soft iron is a soft magnetic material.
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RESONANCE ENGLISH-MAGNETIC FIELD AND FORCES-Exercise
  1. If current in two parallel wires flow in opposite directions, the forc...

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  2. A conductor in the form of a right angle ABC with AB=3 cm and BC = 4 c...

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  3. The intensity of uniform magnetic field between poles of a magnetic is...

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  4. Four wires each of length 2.0 meters area bent into four loops P,Q,R a...

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  5. An irregular loop of conducting wire is lying on a frictionless table ...

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  6. In a cyclotron, the angular frequency of a charged particle is indepen...

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  7. When a small magnetising field H is applied to a magnetic material the...

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  8. How does the magnetic susceptibility of a paramagnetic material change...

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  9. How does the intensity of magnetization of a paramagnetic material var...

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  10. Which of the following relations is not correct?

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  11. The hysteresis loop for the material of a permanent magnet is:

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  12. The desirable properties for making permanent magnets are

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  13. (a)Soft iron is a conductor of electricity. (b) It is a magnetic mater...

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  14. Soft iron is used in many parts of electronical matchines for

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  15. For protecting a sensitive equipment from the external magnetic field,...

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  16. Electromagnets are made of soft iron because soft iron has

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  17. The magnetic moment of a diamagnetic atom is

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  18. How does the magnetic susceptibility chi of a paramagnetic material ch...

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  19. Statement 1: A direct uniformly distributed current flows through a so...

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  20. Statement 1: A charged particle undergoes non-rectilinear motion in a ...

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