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The SI unit of reactance is the:

AOhm
BAmp
CVolt
DWatt
Answer & Solution
Correct answer: A. Ohm
1. Reactance plays the role of resistance in an ac circuit. 2. It therefore has the same dimensions as resistance. 3. Its SI unit is the ohm. 4. So the answer is ohm. _Source: syllabus Physics, Ch 7 'Alternating Current'_
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