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>> PART [I]    PART [II]    PART[III]    PART[IV]     PART[V]


Table of Contents of PART I

1** ELECTROSTATICS & CURRENT AND ELECTRICITY

2** MAGNETIC EFFECT OF CURRENT & MAGNETISM

Top 50 qestions of the week copiled by Ravindra Kumar

check out for the answers on 11 feb, 2003

  1. An isolated conducting sphere is given a + positive charge. Does its mass increase, decrease or remains the same?
  2. Is it possible for a matel sphere of 1 cm radius to hold a chrge of 1 C ?
  3. Can there be a potential difference between two conductors of the same volume carrying the same charge ?
  4. Why does the electric field inside a dielectric decreases when it is placed inside an external electric field?
  5. What are the expressions for the energy of a charged capacitor ?
  6. What is superconductivity?
  7. Define electric susceptibility ?
  8. Three capacitors of capacitance 2pf, 3pf, 4pf are connected in parallel. (a) What is the total capacitance of the combination ?(b)determine the caarge on each capacitor , if the combination is connected to 100 V supply.
  9. Define dipole moment of an electric dipole
  10. Define the difference between the stable and unstable equilibrium with respect to an electric diple plced in a uniforrm electric field .
  11. Define equipotential surface, draw such surface in a unifrorm and non uniform field .
  12. Why the two electric lines of force can not intersect .
  13. Define one a.m.u .
  14. Define Quantizaton of charge .
  15. Find the expression for the potential energy of an electric dipole in a uniform electric field?
  16. Define an idial electric dipole .
  17. Explain electrostatic sheilding. Give one example?
  18. Show the electric lines of force pattern of an electric dipole .
  19. Write the principle of Van de graff generator .
  20. What is the net charge on a capacitor ?
  21. What will be the effect on the capacity of a parallel capacitor when area of each plate is doubled and distance between them is also doubledm ?.
  22. Define Lorentz force .
  23. Explain why two parellel wires carrying current in the opposite direction always repell each other ?
  24. What is superconductivity?
  25. Define dispersion?
  26. Define scattering?
  27. Total internal reflection?
  28. Define Hygens wavelet theory?
  29. Ohm's law ?
  30. What is superconductivity?
  31. Define susceptibility ?
  32. Find out the magnetic moment of a coil of radius 20 cm and carrying current of 5 amp.
  33. Define dipole moment of an electric dipole
  34. Define the difference between the stable and unstable equilibrium
  35. Define equipotential surface.
  36. What is superconductivity?
  37. Define dispersion?
  38. Define scattering?
  39. Total internal reflection?
  40. Define Hygens wavelet theory?
  41. Ohm's law ?
  42. What is superconductivity?
  43. Define susceptibility ?
  44. Find out the magnetic moment of a coil of radius 20 cm and carrying current of 5 amp.
  45. Trying to figur out
  46. Define the difference between the stable and unstable equilibrium
  47. Define equipotential surface.
  48. What is superconductivity?
  49. Define the difference between the stable and unstable equilibrium
  50. Define equipotential surface.

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    [These are the surface on which the work done between the two points is zero, the surfaces are always perpendiculr to the electric field .]

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Ans 36:

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Ans41:

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MAGNETIC EFFECT OF CURRENT & MAGNETISM

Top1 50 qestions of the week copiled by Ravindra Kumar

check out for the answers on 11 feb, 2003

  • Define dispersion?
  • Define scattering?
  • Total internal reflection?
  • Define Hygens wavelet theory?
  • Define Ohm's law ?
  • What is superconductivity?
  • Define susceptibility ?
  • Find out the magnetic moment of a coil of radius 20 cm and carrying current of 5 amp.
  • Define dipole moment of an electric dipole
  • Define the difference between the stable and unstable equilibrium
  • Define equipotential surface.
  • Why the two electric lines of force can not intersect .
  • Define one a.m.u .
  • Define Quantizaton of charge .
  • Find the expression for the potential energy of an electric dipole in a uniform electric field?
  • Define an idial electric dipole .
  • Define Kirchoff's second low of motion, why it is called the law of energy ?
  • Show the electric lines of force pattern of an electric diple .
  • Define relaxation time .
  • Explain by drwing a circuit diagram, how can unknown resistance be calculated by this and why this mathod is batter then the Ohm's law
  • Define one amper of current .
  • Define Lorentz force .
  • Explain why two parellel wires carrying current in the opposite direction always repell each other ?
  • What is superconductivity?
  • Define dispersion?
  • Define scattering?
  • Total internal reflection?
  • Define Hygens wavelet theory?
  • Ohm's law ?
  • What is superconductivity?
  • Define susceptibility ?
  • Find out the magnetic moment of a coil of radius 20 cm and carrying current of 5 amp.
  • Define dipole moment of an electric dipole
  • Define the difference between the stable and unstable equilibrium
  • Define equipotential surface.
  • What is superconductivity?
  • Define dispersion?
  • Define scattering?
  • Total internal reflection?
  • Define Hygens wavelet theory?
  • Ohm's law ?
  • What is superconductivity?
  • Define susceptibility ?
  • Find out the magnetic moment of a coil of radius 20 cm and carrying current of 5 amp.
  • Trying to figur out
  • Define the difference between the stable and unstable equilibrium
  • Define equipotential surface.
  • What is superconductivity?
  • Define the difference between the stable and unstable equilibrium
  • Define equipotential surface.

    Ans 51:

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    Ravindra Kumar
    Copyright � 1999  [Fr. Agnel School, Gautam Nagar , New Delhi- 110021]. All rights reserved.
    Revised: February 19, 2003 Revised: February 19, 2003
  • What is superconductivity?Define dispersion?
  • Define scattering?
  • Total internal reflection?
  • Define Hygens wavelet theory?
  • Ohm's law ?
  • What is superconductivity?
  • Define susceptibility ?
  • Find out the magnetic moment of a coil of radius 20 cm and carrying current of 5 amp.
  • Define dipole moment of an electric dipole
  • Define the difference between the stable and unstable equilibrium
  • Define equipotential surface.
  • What is superconductivity?
  • Define dispersion?
  • Define scattering?
  • Total internal reflection?
  • Define Hygens wavelet theory?
  • Ohm's law ?
  • What is superconductivity?
  • Define susceptibility ?
  • Find out the magnetic moment of a coil of radius 20 cm and carrying current of 5 amp.
  • Trying to figur out
  • Define the difference between the stable and unstable equilibrium
  • Define equipotential surface.
  • What is superconductivity?

    Ans 1:

    [ when white light passes through a denser medium the constituent colors refract through differant angel and seperated out .]

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    Ans 14:

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    •
    Ravindra Kumar
    Copyright � 1999  [Fr. Agnel School, Gautam Nagar , New Delhi- 110021]. All rights reserved.
    Revised: February 13, 2003 Revised: February 13, 2003