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The strength of magnetic field gets halv...

The strength of magnetic field gets halved if the current flowing in a circular current carrying wire is doubled.
Is this statement true.

A

more at the ends than at the centre

B

minimum in the middle

C

same at all points

D

found to increase from one end to the other.

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MODERN PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT-EXERCISE
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  2. A constant current flows in a horizontal wire in the plane of the pape...

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  3. The strength of magnetic field gets halved if the current flowing in a...

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  4. In the arrangement shown in figure there are two coils wound on a non ...

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  5. Choose the incorrect statement

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  6. To convert an AC generator into DC generator

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  7. The most important safety method used for protecting home appliances f...

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  8. A high energy electron enters into a strong magnetic field which is pe...

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  9. A rectangular coil of coper wire is rotated in a magnetic field. The d...

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  10. Commercial electric motors do not used:

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  11. A particle is moving towards east enters in a magnetic field directed ...

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  12. A charged particle moves thorugh a uniform magnetic field perpendicula...

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  13. The magnetic field lines inside a long current carrying solenoid are n...

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  14. An AC generator is connected to an electrical appliances. In 10 revolu...

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  15. An electron enters in a magnetic field at right angle to its shown in ...

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  16. The magnetic field at the centre of a current carrying circular coil d...

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  17. The direction of magnetic field at a point near a current carrying con...

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  18. A dynamo

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  19. An induced emf is produced when a magnet is plunged into a coil. The m...

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  20. The frequency of AC means in India is

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