Answer: Impedance The opposition to current in an electrical circuit is called its

Chapter 2, Problem 91

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Impedance The opposition to current in an electrical circuit is called its impedance. The impedance in a parallel circuit with two pathways satisfies the equation where is the impedance (in ohms) of pathway 1 and is the impedance of pathway 2. (a) The impedance of each pathway in a parallel circuit is found by adding the impedances of all components in the pathway. Use the table to find and (b) Find the impedance 20 10 16 9 1 2 z.

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