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21 July, 14:25

Generate an explanation for the following formula: P = I2R

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Answers (2)
  1. 21 July, 14:52
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    Power is the product of current and voltage:

    P = IV

    And from Ohm's law, voltage is the product of current and resistance:

    V = IR

    So substituting this expression for V into the power equation:

    P = I (IR)

    P = I² R
  2. 21 July, 14:55
    0
    P = IV

    Ohms law gives voltage as the product of current and resistance i. e.

    V = IR

    Replacing this in the previous equation gives

    P = I (IR) = I^2R

    Explanation:

    applying ohms law V=IR
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