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At two corners A and B of an equilatera...

At two corners `A` and `B` of an equilateral triangle `ABC`, a south and north pole each of strength `30Am` are placed. If the side of the triangle is `1m`. The magnetic induction at `C` is

A

`3xx10^(-6)T`

B

`4xx10^(-6)T`

C

`8xx10^(-6)T`

D

`2xx10^(-6)T`

Text Solution

Verified by Experts

The correct Answer is:
A
`B=mu_(0)/(4pi)m/d^(2)`
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NARAYNA-MAGNETISM AND MATTER-EXERCISE - 2 (C.W)
  1. A magnet of length 2L abd moment 'M' is axially cut into equal halves ...

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  2. A bar magnet of magnetic moment 'M' is bent in the form of an arc whic...

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  3. At two corners A and B of an equilateral triangle ABC, a south and no...

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  4. A bar magnet of magnetic moment 3.0 A-m^(2) is placed in a uniform mag...

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  5. The magnetic induction at a distance 'd' form the magnetic pole of unk...

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  6. Two identical north poles each of strength m are kept at vertices A an...

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  7. Two magnets of magnetic moments M and sqrt3M are joined to form a cros...

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  8. The rate of change of torque 'tau' with deflection theta is maximum fo...

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  9. The couple acting on a bar magnet of pole strength 2 Am when kept in a...

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  10. A bar magnet with poles 25cm apart and pole strength 14.4 Am rests wit...

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  11. Two magnets of moments M(1) and M(2) are rigidly fixed togetherat thei...

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  12. A short magnet placed with its axis making an angle with a uniform ext...

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  13. Two short bar magnets of equal dipole moments 'M' each are fastened pe...

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  14. The small magnets each of magnetic moment 10 A-m^(2) are placed end-on...

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  15. The ratio of magnetic fields on the axial line of a long magnet at dis...

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  16. Two short magnets AB and CD in the X-Y plane and are parallel to X-axi...

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

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  18. Magnetic inducton at a point on the axial line of a short bar magnet i...

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  19. A magnetic dipole is under the inflluence of two magnetic fields havin...

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  20. A short bar magnet is placed with its south pole facing geographic sou...

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