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Two identical short bar magnets, each ha...

Two identical short bar magnets, each having magnetic moment M, are placed a distance of 2d apart with axes perpendicualr to each other in a horizontal plane. The magnetic induction ata a point midway between them is

A

`(mu_(0))/(4pi) (3M)/(d^(3))`

B

`(mu_(0))/(4pi) (Msqrt5)/(d^(3))`

C

`(mu_(0))/(4pi) (2M)/(d^(3))`

D

`(mu_(0))/(4pi) (M)/(d^(3))`

Text Solution

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-MAGNETISM AND MATTER -Assignment Section - B Objective Type Questions (One option is correct)
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  2. A thin rectangular magnet suspended freely has a period of oscillation...

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  3. A magnetic needle lying parallel to a magnetic field requires W units ...

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  4. The pole strength of a bar magnet is 48A-m and the distance between it...

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  5. Magnetic intensity for an axial point due to a short bar magnet of mag...

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  6. A small rod of bismuth is suspended freely between the poles of a stro...

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  7. A magnetic needls is kept in a non-unifrom magnetic field . It exper...

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  8. The magnet of vibration magnetometer is heated so as to reduce its mag...

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  9. Two bar-magnets having their moment of inertia in the ratio 2: 3 oscil...

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  10. A small magnetic needle performs 10 oscillations/minute in the earth's...

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

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  12. A steel bar of cross-sectional area A and length l is magnetised to de...

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  13. A dip circle is at right angles to the magnetic meridian. What w...

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  14. A bar magnet oscillates in a region of uniform magnetic field with ti...

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  15. The susceptibility of a substance in vacuum is

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  16. Point out the best representation of relation between magnetic suscep...

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  17. The period of oscillation of compass needle is 8 s at a place where di...

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  18. Which of the following equations indicates that magnetic monopole does...

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  19. The magnitude of magentic field , due to a dipole of magnetic moment 2...

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  20. In a dip circle , the measurement of an apparent dip is 60^(@) at a pl...

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