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A ball is set rolling on the ground. Wil...

A ball is set rolling on the ground. Will it stop by itself ? Why ?

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BINA LIBRARY-ELECTROMAGNETISM-EXERCISE
  1. Can we have surfaces with zero friction ?

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

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  3. A ball is set rolling on the ground. Will it stop by itself ? Why ?

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

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

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

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  7. Give three harmful effects of friction.

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  8. Why is friction essential ?

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

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

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

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

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

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

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

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

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  17. Friction depends on the of surfaces.

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

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  19. Friction produces

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

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