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The materials for the construction of el...

The materials for the construction of electromagnet should have

A

High initial permeability

B

Low initial permeability

C

Low hysteresis loss

D

Both (1) & (3)

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE-MAGNETISM AND MATTER -Assignment Section - A Objective Type Questions (One option is correct)
  1. Maxwell's equation oint vecB * d vecs = 0 says

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  2. A permanent magnet attracts

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  3. A toroid has/have

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  4. In the figure here a paramagnetic sphere is located near south pole of...

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  5. In the figure here a diamagnetic sphere is kept near the bar magnet . ...

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  6. Area under this given curve gives

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  7. The materials for the construction of electromagnet should have

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  8. Magnetic dip was measured at various places on earth in one of the fol...

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  9. Two identical short bar magnets at a distance d(1) = 2 m apart are pl...

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  10. In tangent galvanometer generally for more accuracy deflection of galv...

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  11. In tan A position two short bar magnets of magnetic moments in ratio o...

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  12. Two similar magnets of magnetic moments M(1) and M(2) are taken and vi...

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  13. The arms of a deflection magnetometer in tangent B position are placed...

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  14. A deflection magnetometer is adjusted in the usual way . When a magnet...

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  15. An iron nail near a bar magnet experiences

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  16. What is the basic use of hysteresis curve?

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  17. Intensity of magnetisation is

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  18. Dipole moment of earth is order of the

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  19. Which of the following statements is correct ?

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  20. Variation of mu(r) (relative permeability) with magnetizing field as s...

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