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How size of UPS depends on frequency?
How size of UPS depends on frequency? I mean proportional, inversely proportional or proportional to square of frequency?
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Size comparison of AC and DC machine
which is bigger in size AC or DC, of same rating? As I think DC is right answer but HOW? Explain?
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working tube light?
How choke coil and starter gives high voltage(1200v) across tube light to ionise gases in starting while after starting it limits voltage?