alleryA lagging wattless current is neutralised by adding an equal:
ALagging voltage
BResonant voltage
CResistive current
DLeading current
Answer & Solution
Correct answer: D. Leading current
1. The lagging component must be cancelled, not removed.
2. Cancellation needs an equal and opposite phase shift.
3. An equal leading wattless current does it.
4. So the answer is leading current.
_Source: syllabus Physics, Ch 7 'Alternating Current'_
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