How many turns does the primary coil have

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Reference no: EM13275167

A small light has a 1.0 V, 4.8 W bulb that is powered by a transformer concocted to a 120 V dc power source. The secondary coil of the transformer has 20 turns of wire.

A. How many turns does the primary coil have?

B. What resistance is needed in the light to produce a power of 1.0 W?

Reference no: EM13275167

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