# Thy do stars shine? > Online quiz 5: Friday 2 PM Ruigi Pang Question 1 Not...

###### Question:

Thy do stars shine? > Online quiz 5: Friday 2 PM Ruigi Pang Question 1 Not complete Marked out of 4.00 P Flag question Question: Low power applications in the home often have a transformer that plugs into the 240 V AC wall socket and a lead taking low voltage power to the appliance. (Often the plug-in unit includes an AC-DC converter, but that doesn't concern us for this problem.) Part 1) For a device requiring V 18 V AC, if the primary winding has n-370 turns, how many windings does the secondary coll have assuming an ideal transformer? Secondary has turns Part 2) If the AC power of the device is P - 35 W, what is the current drawn from the 240 V supply? Current = Part 3) What is the current output from the transformer? Current = Check A O BE e 2019/11/22

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