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An electron makes (3 xx 10^5) revolution...

An electron makes (`3 xx 10^5)` revolutions per second in a circle of radius 0.5 angstrom. Find the magnetic field B at the centre of the circle.

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HC VERMA ENGLISH-MAGNETIC FIELD DUE TO CURRENT-exercise
  1. A circular loop of one turn carries a current of 5.00 A. If the magnet...

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  2. A current - carrying circular coil of 100 turns and radius 5.0 cm pro...

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  3. An electron makes (3 xx 10^5) revolutions per second in a circle of ra...

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  4. A conducting circular loop of radius a is connected to two long, strai...

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  5. Two circular coils of radii 5.0 cm and 10 cm carry equal currents of 2...

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  6. Two circular coils of radii 5.0 cm and 10 cm carry equal currents of 2...

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  7. A circular loop of radius 20 cm carries a current of 10 A. An electron...

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  8. A circular loop of radius R carries a current I. Another circular loop...

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  9. A circular loop of radius r carrying a current i is held at the centre...

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  10. Find the magnetic field B due to a semicircular wire of radius 10.0 cm...

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  11. A piece of wire carrying a current of 6.00 A is bent in the form of a ...

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  12. A circular loop of radius r carries a current i. where should a long ...

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  13. A circular coil of 200 turns has a radius of 10 cm and carries a curre...

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  14. A circular loop of radius 4.0 cm is placed in a horizontal plane and c...

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  15. A charge of (3.14 xx 10^-6) C is distributed uniformly over a circular...

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  16. A thin but long, hollow, cylindrical tube of radius r carries a curre...

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  17. A long, cylindrical tube of inner and outer radii a and b carries a cu...

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  18. A long, cylindrical wire of radius b carries a current i distributed u...

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  19. A solid wire of radius 10 cm carries a current of 5.0 A distributed un...

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  20. Sometimes we show an idealised magnetic field which is uniform in a gi...

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