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Electrical Engineering Questions and Answers February 24, 2020

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Consider an NMOS transistor with the gate connected to a voltage source, its source connected to ground, bulk also connected to ground and the drain connected a variable voltage source. The NMOS transistor properties are k 0.2mAV2, 2 0.025 V1, W 16um and L lum , Vto 0.8Vand gate oxide thickness of tox 100. Assuming the transistor in saturation

Each network shown below has several of its branch currents or voltages specified numerically. Several other branch currents or voltages are labeled as unknowns. Find all labeled unknown branch currents and voltages. V 2 A 3 V V2 1A i, 5A (A) (B)

Each transmission line of the threewire, threephase system of Figure 1 has an impedance 152j202. The system delivers a total power of 160 kW at 12,000 V to a balanced three phase load with a lagging power factor of 0.86. a) Determine the magnitude of the line voltage EAr Oof the generator b) Find the power factor of the generator, c) What is the

Assume that all three of the thermal units described next are running. Find the economic dispatch schedules as requested in each part. Use the method and starting conditions given. Minimum Maximum Fuel Cost Unit Data (MW) (MW) (S MBtu) H, 225 8.4P, 0.0025P H, 7296.3P, 0.0081P H, 4007.5P, 0.0025P 45 350 0.80 3D 45 350 1.02 3D 47.5 450 0.90 3 a.

A nonideal flyback converter. The flyback converter shown in Fig. 6.30(d) operates in the continuous conduction mode. The MOSFET has on-resistance and the diode has a constant forward voltage drop The flyback transformer has primary winding resistance and secondary winding resistance (a) (b) Derive a complete steady-state equivalent circuit model,