Electrical Engineering Answers

Explain the significance of Noise Margin? Calculate the Noise Margin for the hardware system following static discipline with voltage levels provided below:
VIL = 1.7 V VIH = 3.2 V VOL = 0.6 V VOH = 4.4 V

Explain the working of N channel Enhancement MOSFET with all necessary diagrams? What is the significance of the gate-source voltage?

Explain how the Zener diode acts as a voltage regulator? How it maintains the regulation with unregulated input or the variable load? Elaborate with suitable example

3. Explain how a rotating magnetic field makes the rotor of an induction motor to rotate?

2. Explain Core losses in a transformer? How to minimize these losses?

1. A 30 KVA transformer has 300 turns on the primary and 50 turns on the secondary winding. The primary is connected to 1500 V, 50 Hz supply. Find
1) the full load primary and secondary currents
2) the secondary emf
3) maximum flux in the core

6. Explain the VI characteristics of Common Emitter NPN Transistor with all necessary diagrams?

5. How NOR Gate act as universal gate, justify your answer

Explain the significance of Noise Margin? Calculate the Noise Margin for the hardware system following static discipline with voltage levels provided below:
VIL = 1.7 V VIH = 3.2 V VOL = 0.6 V VOH = 4.4 V