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Give three harmful effects of friction....

Give three harmful effects of friction.

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BINA LIBRARY-ELECTROMAGNETISM-EXERCISE
  1. Find an expression for the magnetic field at a point on the axis of a ...

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

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  3. Give three harmful effects of friction.

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  4. Why is friction essential ?

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

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

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

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

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

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

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

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

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  13. Friction depends on the of surfaces.

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

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  15. Friction produces

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

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

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  18. The sprinkling of powder on the carrom board friction

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  19. Sliding friction is than the static friction

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  20. What is meant by hysteresis loop? What type of magnetic material is us...

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