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12th Standard English Medium Physics Subject Current Electricity Book Back 3 Mark Questions with Solution Part - I Question Bank Software May-31 , 2021

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12th Standard English Medium Physics Subject Current Electricity Book Back 3 Mark Questions with Solution Part - I

12th Standard English Medium Physics Subject Current Electricity Book Back 3 Mark Questions with Solution Part - I

12th Standard

    Reg.No. :
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Physics

Time : 00:30:00 Hrs
Total Marks : 15

    Part I

    5 x 3 = 15

  1. Resistance of a material at 20oC and 40oC are 45 Ω and 85 Ω respectively. Find its temperature coefficient of resistivity.

  2. Describe the microscopic model of current and obtain general form of Ohm’s law.

  3. Obtain the macroscopic form of Ohm’s law from its microscopic form

  4. Explain the equivalent resistance of a series and parallel resistor network.

  5. Explain the determination of the internal resistance of a cell using voltmeter.

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