how can we change the polarity of Alternating current rapidly?
how frequency of ac can be controlled and changed easily?
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Why, the starting current of 3 phase Induction Motor is 7 to 8 times its rated current?
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Why we use Y-Y connection in power transformer (8-10 MVA, 132 kV to 11 KV)and D-y in distribution transformer (2 MVA, 11 KV to 440 Volts)?
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2 Answers Weltech Engineering,
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what will happen when choke in tube light circuit was not working???
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