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12th Standard English Medium Physics Subject Current Electricity Creative 2 Mark Questions with Solution Part - II

12th Standard

    Reg.No. :
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Physics

Time : 00:30:00 Hrs
Total Marks : 10
    5 x 2 = 10
  1. What happens to the drift velocity of electron and to the resistance if length of conductor and to the resistance if length of conductor unchanged?

  2. Draw V - I graph for ohmic & non -ohmic materials. Give example.

  3. Mention are limitation of carbon resistors.

  4. Two wires A & B are of the same metal of the same length have area of the cross-section in the ratio of 2: 1. If the same potential difference is applied across each wire. What will be the retro of the circuit flowing in A & B?

  5. Show variation of resistivity of
    (i) conductor (i.e. copper)
    (ii) semiconductor
    (ii) with temperature in a graph. Give reason.

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