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1. How do you distinguish between positive and negative logic systems? Prove that an OR gate in a positive logic system is an AND gate in a negative logic system.
2. Why are NAND and NOR gates called universal gates? Justify your answer with the help of examples.
What will be the heat loss per hour if soda-lime glass instead of steel is used? Calculate the heat loss per hour if steel is used and the thickness is increased to 20 mm (0.79 in.).
What is the maximum temperature required for the maximum emissive power to enter the microwave range?
Calculating a DC Current through the telephone handset, A telephone handset has a resistance of 600 ohm. It is connected to the local telephone exchange at a distance of 5 km by a twisted pair that has a loop resistance of 200 ohm per km
suppose i have a charge on an insulator. if i touch it to a conductor what happens? since charge doesnt flow on
Similar to the case study presented in the chapter, try to perform a sectorial energy and exergy analysis of a country or geopolitical region.
A function generator is adjusted to give a 60 HZ sine wave with no-load (open-circuit) voltage of 3Vrms. When a 1k ohm load is place across the output terminals of the function generator, the output voltage drop to 8Vpp.
A constant(dc) current i(t)=3mA flows into a 50x10^(-6) capacitor. The voltage at t=0 is v(0)= -20V. The references for v(t) and i(t) have the passive configuration. 1. find the power at t=0 2. state whether the power flow into or out of the capaci..
Consider an LTI(linear,time-invariant) system with input x(t) and output y(t). Suppose you know(measure) the step response, tha is , for x(t) =u(t), you know that y(t) = 2e^(-0.5t)*u(t). Find the output for the following different inputs
Given three induction motors, find the real power P, the reactive power Q, and the apparent power S for each motor. Alsofind P, Q, and S for the total motor load. Motor 1: draws an electrical power of 100kw with power factor=.90 lagging.
Discuss the bounce-diagram technique of keeping track of the bouncing back and forth of the transient waves on a transmission line for a constant voltage source.
A 3-phase, 50 Hz, 4-pole, 400 V wound rotor induction motor has a stator winding D-connected and a rotor winding Y-connected.
Draw the current waveform of the output resistor RL if VBR = 20 V, IH = 20 mA, and RL = 1000 ohms. Label the current graph with the correct value of the output current.
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