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Mangetic field intensity at the centre o...

Mangetic field intensity at the centre of a coil of 50 turns, radius 0.5 m and carrying a current of 2 A is

A

`0.5 xx 10^-5T`

B

`1.26 xx 10^-4 T`

C

`3 xx 10^-5 T`

D

`4 xx 10^-5 T`

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MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
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  2. In S.I. system, magnetic permeability has units

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  4. A circular coil 'A' has a radius R and the current flowing through it ...

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  7. A long wire is first bent into a circular coil of one turn and then in...

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  8. The magnetic field at a distance r from a long wire carryimg current I...

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  9. A straight wire of diameter 0.5 mm carrying a current of 1 A is replac...

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  10. Two long parallel wire P and W are both perpendicular to the plane of ...

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  11. If a long copper rod carries a direct current, the magnetic field asso...

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  12. A long solenoid carrying a current produces a magnetic field B along i...

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  13. When a charged particle moves perpendicular to a magnetic field, then

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  14. A positively charged particle moving due east enters a region of unifo...

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  15. A charged particle moves with velocity vecv in a uniform magnetic fiel...

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  16. When a charged particle moving with velocity vecv is subjected to a ma...

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  17. The magnetic force acting on a charged particle of charge -2 muC in a ...

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  18. Due to earth's magnetic field, the charged cosmic rays particles

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