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The primary windings of a transformer, which has an 65% efficiency, are connected to 110 V ac. The secondary windings are connected across a 2.4 , 100 W lightbulb.

(a) Calculate the current through the primary windings of the transformer.

A

(b) Calculate the ratio of the number of primary windings of the transformer to the number of secondary windings of the transformer.

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  • Category:- Physics
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