5. For the circuit below, calculate the following: a. Determine the circuit impedance. b. Determine the total circuit current. c. Find the voltage magnitude across each circuit element. №1 10Vpk 1kHz 0 Vs R1 w 1000 R2 1750 L1 368mH L2 33mH L 47mH +

5a. What is E2=? 5b. What is E3=? 5c. What is the potential difference of b relative to point a (V_ba)?

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(5) Primary AC Source Transformer Secondary AC/DC Full-wave Rectifier Capaictor in Non- linear Load Figure 6 Analyse different methods of harmonics mitigation to eliminate the harmonic, which you have identify in above power system circuit. You can use harmonic filters, K or equivalent transformers or oversized neutral method depending upon the harmonic sources.

Peak input voltage =(from graph) ?Peak output voltage =  (from graph)?DC voltage across RL = ?ripple factor=?

An LM317 is connected between two decoupling capacitors. There is a 220ohm resistor between the output pin and the adjust pin. Note the voltage drop between the output and adjust pins is 1.25V. Find the resistor needed between the Adjust pin and ground to ensure 5 V is dropped across the load. Enter your answer in ohms: _ohms

Consider the switching waveforms shown below, operating with a duty-cycle of 30%. Which statements correctly describe the switching circuit, load and circuit operation? (Multiple answers possible, but wrong answers will deduct marks) Voltage across load Voltage (V) 000 120 0000 100 80 60 40 20 30 Time (us) The load must be predominantly resistive. The average current in the load is 1.0A. The RMS current in the load is approximately 1.414A. The load must be predominantly inductive. The resistive part of the load is 200ohms. The average current in the load is 0.6A. O The resistive part of the load is 50ohms. 0 0 10 20 40 50 60 Current (A) 2 5 0.5 0 0 10 Current through load 20 W 30 Time (us) 40 50 60

50. For the circuit of Figure 2.7.32, determine the voltages across each component. Further, draw a phasor diagram of the four component voltages. Show all work

The step down DC chopper uses DC source voltage V(dc) = 200 V and resistive load impedance of 10 ohm. The duty cycle is 0.4 the voltage drop across the switch may be taken as zero, Calculate :   (a) Average and RMS value of output voltage.  (b) Average and RMS value of output current.

Full calculation with any assumption needed. All sub questions please as it is all related.