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If the resistive load is replaced by an inductive reactance of 20 O:
Determine the voltage across Re and Xe, and find the reflected load.
Discuss in your own words the frequency characteristics of the transformer.
Determine the input impedance to the air-core transformer of Figure.
Find the current rating of the secondary if the 120 V is the secondary voltage.
For the center-tapped transformer of Fig. where Np= 100, Ns = 25, ZL = R?0° = 5 O?0°, and Ep = 100 V?0°.
For the multiple-load transformer of Fig. where N1 = 120, N2 = 40, N3 = 30, Z2 = R2 ?0° = 12 O?0° .
Calculate the magnitude of VC at resonance (fp). Determine the power absorbed at resonance.
Sketch the curve of VC versus frequency. Indicate its peak value, resonant frequency, and band frequencies.
Determine Ql and Qp at fp after a source conversion is performed.
Show that the resonant frequency is in fact 40 kHz, the cutoff frequencies are as calculated, and the bandwidth is 1.85 kHz.
Find fp and fm for the parallel resonant network of Fig. , and comment on the resulting bandwidth .
What is the power dissipated in the circuit at the half-power frequencies?
Write a program to provide a general solution for the network of Fig.(A).
Find the induced voltages ep and es if the flux linking the primary coil changes at the rate of 0.08 Wb/s.
Find the magnitude of the induced voltage Es. Find the maximum flux Fm.
If the maximum flux passing through the core of Problem 1 is 12.5 mWb, find the frequency of the input voltage.
Find the magnitude of the current IL and the voltage VL if a= 1/5, IP= 2A, and ZL=2O resistor.
Find the resonant ?s and fs for the series circuit with the parameters.
Calculate the voltages VR, VL, and VC at resonance. How are VL and VC related? How does VR compare to the applied voltage E?
Find the voltages VR, VL, and VC at resonance, and compare their magnitudes.
Find the cutoff frequencies, and calculate the power dissipated by the circuit at these frequencies.
If the resistance of the circuit at resonance is 3 O, what are the values of XL and XC in ohms?
A series circuit has a resonant frequency of 10 kHz. The resistance of the circuit is 5 O, and XC at resonance is 200 O.
The bandwidth of a series resonant circuit is 200 Hz. If the resonant frequency is 2000 Hz, what is the value of Qs for the circuit?