In Exercises 3 and 4, what is the net power absorbed by each circuit over a complete cycle. Explain your answer.
In inductive circuit
Root mean square value of current, I = 15.92 A
Root mean square value of voltage, V = 220 V
The net power absorbed by each circuit over a complete cycle is given by the solution:
Power = VI cosФ
Where Ф is the phase difference between the voltage and current
For a pure inductive circuit, the phase difference between voltage and current in 900.
Substituting the above values, we get
⇒ P = 0
In capacitor circuit
Root mean square value of current, I = 2.49 A
Root mean square value of voltage, V = 110 V
The net power absorbed by each circuit over a complete cycle is given by the solution:
Power = VI cos Ф
For a pure capacitor circuit, the phase difference between voltage and current in 900.
Substituting the above values, we get
⇒ P = 0
∴ Zero power is absorbed by each circuit.