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Q. When the emf for the primary of a transformer is of amplitude 6.00 V, the secondary emf is 48.0 V in amplitude. What is the transformer turns ratio (N2/N1)?

Q. A 50.0g silver spoon at 20.0c is placed in a cup of coffee at 90c. How much heat does the spoon absorb from the coffee to reach a temperature of 89c?

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