ACMA Advanced Amateur Radio Theory Practice Questions - ACMA Amateur Radio Advanced Recognition Certificate - Theory Examination Exam

In a circuit containing both resistance and reactance, the impedance is found from which relationship?

Z = R + X (simple arithmetic sum) Z = sqrt(R^2 + X^2) Z = R x X Z = R / X

Correct Answer:

Z = sqrt(R^2 + X^2)

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