A series combination of a 300 â„¦ resistor and a 100 mH inductor is connected to a sinusoidal voltage source by a linear transformer. The source is operating at a frequency of 1000 rad/s. At this frequency, the internal impedance of the source is (100 + j13.74) â„¦. The rms voltage at the terminals of the source is 50 V when it is not loaded. The parameters of the linear transformer are R1 = 41.68 â„¦, L1 = 180 mH, R2 = 500 â„¦, L2 = 500 mH, and M = 270 mH.
Â a) What is the value of the impedance reflected into the primary?
Â b) What is the value of the impedance seen from the terminals of the practical source?