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Electric power =(V^(2))/(.......)...

Electric power `=(V^(2))/(.......)`

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Electric power `=(V^(2))/(ulR)`
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Electric power =I^(2)R

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Knowledge Check

  • Assertion (A) : The power consumed in an electric circuit is never negative Reason (R ) : The aveage power consumed in an electric circuit is P = (V^(2))/(R ) = I^(2) R

    A
    Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
    B
    Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
    C
    Assertion is true but Reason is false
    D
    Assertion is false but Reason is true

  • Hydro-electric power generates

    A
    electrical energy
    B
    nuclear energy
    C
    thermal energy
    D
    none of these

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    An electric power station ( 100 MW) transmits power to a distant load through long and thin cables. Which of the two modes of transmission would result in lessere power wastage : Power transmission of : (i) 20,000 V or (ii) 200 V?

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