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Which of the followfng statements is wro...

Which of the followfng statements is wrong? Magnetic lines of force

A

Total magnetic flux linked a closed surface is always zero

B

They need not perpendicular to the surface from where they start or where they meet

C

They may or may not pass through conductor

D

All of these

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The correct Answer is:
D
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AAKASH INSTITUTE-MAGNETISM AND MATTER -ASSIGNMENT (SECTION A)
  1. Potential energy of a bar mangnet of magnetic moment M placed in a mag...

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  2. A magnetic dipole with magnetic moment M is placed at right angles to ...

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  3. Which of the followfng statements is wrong? Magnetic lines of force

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  4. A thin magnetic needle oscillates in a horizontal plane with a period ...

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  5. The time period of a freely suspended magnet is 4 seconds. If it is br...

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  6. The magnetic moments of two bar magnets of same size are in the ratio ...

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  7. Magnetostatic screening or shielding can be created by

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  8. Planets producing larger magnetic field have larger

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  9. To shield an instrument from external magnetic field, it is placed ins...

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  10. A dip needle lies initially in the magnetic merdian when it shows an a...

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  11. The real angle of dip, if a magnet is suspended at an angle of 30^(@) ...

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  12. A dip needle free to move in a vertical plane perpendiculr to the magn...

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  13. If theta1 and theta2 be the apparent angles of dip observed in two ver...

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  14. How many neutral points will be obtained when a bar magnet is kept wit...

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  15. Time period of cillations of a magnet of magnetic moment M and moment ...

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  16. A magnet is suspended in such a way that it oscillates in the horizont...

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  17. Instuments based on tangent law are most accurate when the defiection ...

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  18. The magnetic induction and magnetising field intensity in a sample of ...

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  19. A frog can be levitated in a magnetic field produced by a current in...

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  20. When a ferromagnetic material is heated to temperature above its Curie...

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