I have two questions to ask
first.
what is difference between active power(P) and reactive power(Q). why dont arithmetic sum P+Q doesnt give apparent power S. Why should they be added (P^2+Q^2)^0.5. please give me the answer with physical interpretation.
second
what is differnce between resistance and reactance. why dont a resistor has reactance. while inductor and capacitor has internal resistance
first.
what is difference between active power(P) and reactive power(Q). why dont arithmetic sum P+Q doesnt give apparent power S. Why should they be added (P^2+Q^2)^0.5. please give me the answer with physical interpretation.
second
what is differnce between resistance and reactance. why dont a resistor has reactance. while inductor and capacitor has internal resistance