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A steel bar of cross-sectional area A an...

A steel bar of cross-sectional area A and length l is magnetised to develop an intensity of magnetisation l . The pole strength of the bar is

A

IA

B

`(Il)/(A)`

C

`(I)/(l)`

D

`(1)/(IA)`

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The correct Answer is:
A
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AAKASH INSTITUTE-MAGNETISM AND MATTER -Assignment Section - B Objective Type Questions (One option is correct)
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  10. A small magnetic needle performs 10 oscillations/minute in the earth's...

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  11. Two identical short bar magnets, each having magnetic moment M, are pl...

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  12. A steel bar of cross-sectional area A and length l is magnetised to de...

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  13. In a vertical plane p(1) making angle 30^(@) with magnetic meridian , ...

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  14. A bar magnet oscillates in a region of uniform magnetic field with ti...

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  15. The susceptibility of a substance in vacuum is

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  16. Point out the best representation of relation between magnetic suscep...

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  18. Which of the following equations indicates that magnetic monopole does...

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  19. The magnitude of magentic field , due to a dipole of magnetic moment 2...

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  20. In a dip circle , the measurement of an apparent dip is 60^(@) at a pl...

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