Answer Posted / t swetha
powerfactor of dc supply is 1 why because there is no phase
difference between the voltage and current
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y we use neutral,all r told its used to for closed path..k its a just used to closed path,in a transmission line y we put same conductor used n both phase and neutral..if we use less than phase conductor in neutral mean we ll reduce cost its right r wrong..if we use mean any problem occur in transmission line..
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