1.

For the following circuit power is given by(a) –Vi(b) Vi(c) 0(d) 1The question was asked in my homework.My question is from The International System of Units, Voltage and Current, Power and Energy in section Circuit Variables and Elements of Electric Circuits

Answer»

The CORRECT CHOICE is (a) –Vi

Easy explanation: P = vi. The ALGEBRAIC sign of POWER depends on movement of charge through the DROP and rise of voltage.



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