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5) The charger for a cell phone contains atransformer that reduces 120v AC to so-v AC to charge the 37-v battery. The output coa contains 30turns of wire and the charger supplies 0.70 of current. (A) What is the number of turns in the input coil? (s points) (B) How much current flows through the input coil? (5 points) (C) How much power is transformed? (5 points) (D) ls the transformer step down or step-up? Explain. (5 points)

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5 (1 Ratings )

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Physics 10 Months Ago 6 Views
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