alleryStart learning →Why is a choke coil preferred to a resistor for lowering AC in a lamp circuit?
AIt dissipates heavy heat
BIt wastes almost no power
CIt raises the frequency
DIt needs no iron core
Answer & Solution
Correct answer: B. It wastes almost no power
A resistor turns the unwanted voltage into heat, while a choke drops it as reactive voltage with negligible loss.
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