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The geometric length of a bar magnet is ...

The geometric length of a bar magnet is `24cm`. The length of the magnet is

A

24 cm

B

28.8 cm

C

20 cm

D

30 cm

Text Solution

Verified by Experts

The correct Answer is:
C
`2l=5/6`[geometric length]
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NARAYNA-MAGNETISM AND MATTER-EXERCISE - 1 (C.W)
  1. The geometric length of a bar magnet is 24cm. The length of the magnet...

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  2. The magnetic moment of a magnet is 3.6xx10^(-3)A.m^(2). Its pole stren...

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  3. Two magnets have their lengths in the ratio 2:3 and their pole strengt...

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  4. The length of a magnet is 16 cm. Its pole strength is 250 milli.amp.m....

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  5. A bar magnet of magnetic moment M(1) is axially cut into two equal par...

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  6. The resultant magnetic moment for the following arrangement (non copla...

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  7. The resultant magnetic moment for the following arrangement is

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  8. A magnet of magnetic moment M and length 2l is bent at its mid-point s...

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  9. A bar magnet of magnetic moment M is bent in shape such that all the ...

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  10. A thin "bar" magnet of length 'l' and magnetic moment 'M' is bent at t...

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  11. Three magnets of same length but moments M,2M and 3M are arranged in t...

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  12. A "bar" magnet of moment M is cut into two identical pieces along the ...

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  13. A magnetic pole of pole strength 9.2Am. Is placed in a field induction...

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  14. The magnetic induction at distance of 0.1m from a strong magnetic pole...

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  15. If area vector bar(A)=3bari+2barj+5bark m^(2) flux density vector bar(...

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  16. P and Q are two unlike magnetic poles. Induction due to 'P' at the loc...

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  17. Two north poles each of pole strength m and a south pole of pole stren...

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  18. The pole strength of a horse shoe magnet is 90Am and distance between ...

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  19. The force acting on each pole of a magnet when placed in a uniform mag...

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  20. An iron specimen has relative permeability of 600 when placed in unifo...

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