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Current Electri...

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  • Question 1
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    A student has 10 resistors of resistancer ‘r’.The minimum resistance made by him from given resistors is

  • Question 2
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    By a cell a current of 0.9 A flows through 2 ohm resistor and 0.3 A through 7 ohm resistor. The internal resistance of the cell is

  • Question 3
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    Kirchhoff's second law is based on the law of conservation of

  • Question 4
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    In identical cells each of e.m.f. E and internal resistance r are connected in series. An external resistance R is connected in series to this combination. The current through R is

  • Question 5
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    Assertion: Two electric bulbs of 50 and 100 W are given. When connected in series 50 W bulb glows more but when connected parallel 100 W bulb glows more

    Reason: In series combination, power is directly proportional to the resistance of circuit. But in parallel combination, power is inversely proportional to the resistance of the circuit.

  • Question 6
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    Resistance of one carbon filament and one tungsten lamp are measured individually when the lamp are lit and compared with their respective resistances when cold. Which one of the following statements will be true?

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