A circuit consists of 6ohm resistor; an inductor of 18 mH is connected in parallel. The totalcurrent ?owing towards the circuit is given by: I 4.5 Sin wt +1.7 Sin (3wt +25°) + 0.75 Sin (5wt -35°) AThe fundamental frequency is 50 Hz. Determine:5.1 An expression for the applied voltage5.2 The true power ofthe circuit5.3 The overall power factor ofthe circuit.
This is no different from any other problem like this. The fact that the current has 3 terms doesn't change anything, except the voltae will also have 3 terms.
Given R13.Zero, R210.0, L7.0mH, Vs5.8V due to the fact that the present via an inductor cannot alternate instantly, i.Lzero when change closes. V.R1 VsR1/(R1+R2) 1.3V V.R2 VsR2/(R1+R2) 4.5V lengthy after switch is closed, inductor is a brief circuit. V.R1 Vs 5.8V V.R1 0V
