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Q.

The core of the choke coil of a tube light is made laminated

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a

to minimise hysteresis loss.

b

to minimise loss due to joule heating

c

to increase reactance of the choke coil.

d

to minimise eddy current loss.

answer is D.

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Detailed Solution

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Laminated core increases the resistance offered by the core to the flow of eddy current and the eddy current is reduced. As a result eddy current loss is minimised.

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