A high-intensity desk lamp is rated at 45 W but requires only 12 V. It contains a
Question:
(a) Is the transformer step-up or step down?
(b) What is the current in the secondary coil when the lamp is on?
(c) What is the current in the primary coil?
(d) What is the resistance of the bulb when on?
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a Because this is a stepdown transformer b Assuming 100 effic...View the full answer
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