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Find an expression for the magnetic fiel...

Find an expression for the magnetic field at a point on the axis of a circular current loop.

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BINA LIBRARY-ELECTROMAGNETISM-EXERCISE
  1. A ball is set rolling on the ground. Will it stop by itself ? Why ?

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  2. A charged particle enters a magnetic field with a velocity v in a dire...

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  3. Find an expression for the magnetic field at a point on the axis of a ...

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  4. Give three factors on which the frictional force in fluids depends.

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  5. Give three harmful effects of friction.

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  6. Why is friction essential ?

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  7. Why is a voltmeter connected in parallel with a circuit?

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  8. Why an ammeter should have as low resistance as possible?

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  9. Why should a voltmeter have as large resistance as possible?

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  10. Find the following expression for the magnetic moment of an electron m...

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  11. What is voltmeter? How galvanometer converted to a voltmeter?

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  12. A rectangular coil carrying current is placed in a uniform magnetic fi...

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  13. Find an expression for the magnetic field at a point on the axis of a ...

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  14. Friction opposes the between the surfaces in contact with each other.

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  15. Friction depends on the of surfaces.

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  16. Find the magnetic field due to a short bar magnet at any point on axia...

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  17. Friction produces

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  18. A magnetic dipole is placed in a uniform magnetic fields, B, when the...

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  19. Name three elements required to specify the earth’s magnetic field at ...

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  20. The sprinkling of powder on the carrom board friction

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