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Why a choke is needed with a fluorescent...

Why a choke is needed with a fluorescent lamp with ac mains? Why a normal resistor can not be used in place of the choke?

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An inductor can introduce voltage drop in a cricuit without any loss of power put a resitor gets heated during the process and some power is lost. A choke acts as an inductor in a circuit, so a choke is used in place of resistor.
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