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The magnetic induction due to a bar magn...

The magnetic induction due to a bar magnet of length `6 xx 10^(-2)m` and pole strength `5 xx 10^(-3)m` at a point 0.1 m away from the centre and along the equator

A

`3xx 10^(-9)N//A m`, directed from N-pole to S-pole

B

`3 xx 10^(-8) N//A m`, directed from S-pole to N-pole.

C

`3xx 10^(-8) T`, directed from S-pole to N-pole

D

`3 xx 10^(-9)T`, directed from S-pole to N-pole.

Text Solution

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The correct Answer is:
B
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TARGET PUBLICATION-MAGNETISM-MCQs
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  3. The magnetic induction due to a bar magnet of length 6 xx 10^(-2)m and...

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  4. Using mass (M), length (L), time (T) and current (A) as fundamental q...

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  7. In order to have a strong electromagnet it must have

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  8. Earth's magnetic field always has a horizontal component except at

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  9. Each pole of magnet of length 20 cm in a magnetic field of induction 0...

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  10. If the moment of a magnet is 0.4 A m^(-1) and force seting on esch pot...

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  11. If at a given place the earth's magnetic inchretion B is 5 xx 10^(-4) ...

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  12. The torque acting on a magnetie dipole of moment 5 A m^(2) when placed...

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  13. The number of electrons flowing in a current carrying circular coil pe...

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  14. The vector sum of magnetic moments of all electrons inside the atom is...

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  15. Assertion: Magnetic moment of an atoms is due to both, the orbital mot...

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  16. A small hole is made at the centre of the magnet then its magnetic mom...

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  17. The current carrying loop behaves as magnetic dipole because,

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  18. The number of small magnetic dipoles in a solenoid is proportional to

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  19. A straight wire carring current I is turned into a circular loop. If t...

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  20. The torque on a bar magnet due to the earth's magnetic field is maximu...

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