In india the power supply is always in multiple of 11,
eg.220 V, 440 V...
what is the reason?
Answer Posted / pratik p
1.1 form factor is everywhere in world.....
K_f = \frac{RMS}{Average} = \frac{\frac{1}{\sqrt{2}}}
{\frac{2}{\pi}} = \frac{\pi}{2\sqrt{2}} \approx 1.110720735
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