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Two points A and B are situated perpendi...

Two points A and B are situated perpendicular to the axis of 4 cm long bar magnet at a distance x and 3x from its centre on opposite sides. The ratio of magnetic inductions at A and B will be equal to

A

`27:1`

B

`2:9`

C

`6:8`

D

`1:27`

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A
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TARGET PUBLICATION-MAGNETISM-MCQs
  1. The magnetic induction due to a bar magnet at a point on its axis is d...

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  2. The magnetic field at a distance d from a short bar magnet in longitud...

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  3. Two points A and B are situated perpendicular to the axis of 4 cm long...

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  4. The magnetic induction due to short magnetic dipole of moment 0.1" A m...

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  5. The magnetic induction due to a bar magnet of length 6 xx 10^(-2)m and...

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

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  7. The magnetic induction at a point on axis or equator is proportional t...

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  8. When a bar magnet is placed in a non-uniform magnetic field, it perfor...

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

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

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

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

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

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

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

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

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

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

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

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

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