ELECTRONICS There are three basic things to be considered in an electrical circuit: the

Chapter 7, Problem 68

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ELECTRONICS There are three basic things to be considered in an electrical circuit: the flow of the electrical current I, the resistance to the flow Z, called impedance, and electromotive force E, called voltage. These quantities are related in the formula E = I Z. The current of a circuit is to be 35 - 40j amperes. Electrical engineers use the letter j to represent the imaginary unit. Find the impedance of the circuit if the voltage is to be 430 - 330j volts.

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