30. Induction and Inductance
Transformers
2:46 minutes
Problem 29.65ab
Textbook Question
Textbook QuestionA high-intensity desk lamp is rated at 35 W but requires only 12 V. It contains a transformer that converts 120-V household voltage. (a) Is the transformer step-up or step-down? (b) What is the current in the secondary coil when the lamp is on?
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