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Soft iron is used in many electrical mac...

Soft iron is used in many electrical machines for:

A

Low hystenests loss and low permeability

B

Low hysteresis loss and high permeability

C

High hysteresis loss and low permeability

D

High hysteresis loss and high permeability

Text Solution

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The correct Answer is:
B
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AAKASH INSTITUTE-MAGNETISM AND MATTER -ASSIGNMENT (SECTION B)
  1. The vertical component of earth's magnetic field at a place is sqrt3 ...

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  2. The work done in turning a magnet of magnetic moment 'M' by an angle o...

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  3. Soft iron is used in many electrical machines for:

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  4. A small bar magnet A oscillates in a horizontal plane with a period T ...

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  5. Two different magnets are tied together and allowed to vibrate in a ho...

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  6. The values of the apparent angles of dip in two planes at right angles...

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  7. A bar magnet is placed with its north pole towards geographic north. T...

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  8. The value of horizontal component of earth's magnetic field at a place...

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  9. The period of oscillation of a magnet of a vibraion magnetometer is 2....

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  10. If phi is lattitude and del is dip at a place then

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  11. A tangent gavanometer has 80 turns of wire. The internal and external ...

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  12. Magnetic susceptibility of a diamagnetic substances

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  13. Area of B-H curve measures the energy loss

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  14. A wire of length L metre , carrying a current I ampere is bent in the...

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  15. Bohr magnetonis given by (symbols have their usual meanings)

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  16. What is the unit of magnetic susceptibility?

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  17. One weber is equal to

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  18. The number of turns and radius of cross-section of the coil of a tange...

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  19. Two short bar magnets of magnetic moments 'M' each are arranged at the...

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  20. The work done in rotating a bar magnet of magnetic moment M from its u...

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