alleryThe total opposition of an ac circuit is called its:
AWattage
BImpedance
CFrequency
DAmplitude
Answer & Solution
Correct answer: B. Impedance
1. Resistance alone does not describe an ac circuit.
2. Reactances must be combined with it.
3. The combined quantity is the impedance Z.
4. So the answer is impedance.
_Source: syllabus Physics, Ch 7 'Alternating Current'_
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