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In an AC circuit, the voltage E, current I, and impedance Z are related by the

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Formula E = I · Z.

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Find the voltage in a circuit with current 2 + 5iamps and Impedance is 4 – iohms. \"\"

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E = I · Z

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Substitute I and Z values

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\"\"

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\"\"     (Multiply using FOIL method)

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\"\"                   (Multiply: \"\")          

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\"\"                               (Multiply: \"\")

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\"\"                                     (Add: \"\")\"\"

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\"\"                               (Substitute the imaginary unit value \"\")

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\"\"                                        (Product of two same signs is positive)

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\"\"                                        (Apply Commutative property: \"\")

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\"\"                                            (Add: \"\")\"\"

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The voltage is \"\" volts.

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