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Current Electri...

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  • Question 1
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    Maximum power developed across resistance R in the circuit shown in Fig. is

  • Question 2
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    A tap supplies water at 22ºC. A man takes 1 litre water per minute at 37ºC from the geyser. The power of geyser is

  • Question 3
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  • Question 4
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    The effective resistance of a n number of resistors connected in parallel in x ohm. When one of the resistors is removed, the effective resistance becomes y ohm. The resistance of the resistor that is removed is....

  • Question 5
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    when a cell is connected to a resistance R1 the rate at which heat is generated in it is the same as when the cell is connected to a resistance R2 (1 ) the internal resistance of the cell is....

  • Question 6
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    Length of a wire of resistance RΩ is increased to 10 times, so its resistance becomes 1000Ω, therfore R = .... (The volume of the wire remains same during increase in length)

  • Question 7
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  • Question 8
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  • Question 9
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    Two batteries each of emf 2V and internal resistance 1Ω are connected in series to a resistor R. Maximum Possible power consumed by the resistor = ....

  • Question 10
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    In an experiment to measure the intenal resistance of a cell by a potentiometer it is found that all the balance points at a length of 2m when the cell is shunted by a 5 ohm resistence and is at a length of 3m when the cell is shunted by a 10 ohm resistance, the internal resistance of the cell is then :

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