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If a magnet of pole strenght m is divid...

If a magnet of pole strenght m is divided into four parts such that the length and which width of each part is half that of initial one, then the pole strength of each part will be

A

2T

B

T

C

`T/2`

D

`T/4``

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-Mock Test 31: PHYSICS-Example
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  6. When the N-pole of a bar magnet points towards the south and S-pole to...

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  7. Which of the following statement is incorrect?

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  10. The true value of dip at a place is 30^(@). The verticle plane carryin...

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  11. When a current of 1A passes through a tangent galvanometer, angle of d...

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  12. The magnetism of a bar magnet is due to

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  13. The only property possessed by ferromagnetic substance is

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  14. Which of the following statement is incorrect about hysteresis?

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  15. For an isotropic medium B, mu, H and M are related as (where B, mu(0),...

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  16. The variation of magnetic susceptibility (chi) with absolute temperatu...

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  17. The coercivity of a bar magnet is 120A//m. It is to be demagnetised by...

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  20. The material suitable for making electromagnets should have

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