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Describe the energy for:
(a) a free electron;
(b) a strongly bound electron; and
(c) an electron in a periodic potential. Why do we get these different band schemes?
Signal generator‘s internal impedance is purely resistive andhas an open-circuit voltage of 3.5 V. When the generator is loaded with 22 ohms of resistance, its terminalvoltage drops to 2.8 V. What is the generator's output impedance (pure resistanc..
Find the largest allowable signal swing (peak-to-peak) at the collector to satisfy the two conditions: BJT remains active , and vbe limited to 5 mV . What is the corresponding allowable peak-to-peak input voltage vi
An aluminum casting that has a mass of 10 kg sits on a steel surface. How much force will be necessary to get it to start sliding. The static coefficient of friction (mu) for aluminum on steel is 0.61.
Consider the function F = x · y + x(not) · z. a) Expand the function to its canonical or standard sum of products (SOP) form. b) Express the function in its canonical or standard product of sums (POS) form.
The common crystal used in older color teleisions outputs a 3.58002 MHz signal. What is the MOD number required for a counter to reduce this to a 60Hz output
A pulse width modulation (PWM) circuit works by varying the duty cycle of the square wave while keeping the period fixed.
How would the starting current of the Y-connected motor compare to the starting current if the motor remained in a D-connection during starting?
1.A shunt-connected DC motor operates at its rated terminal voltage. Its no-load speed is200 radians/second. At its rated torque of 500 Nm, its speed is 180 radian/second. Themotor is used to directly drive a load whose load torque TL depends on its ..
a three phase 25 kva 208 V 60hz alternator operating under balancedsteady state conditions , supplies a line current of 20 A per phaseat a 0.8 lagging power factor and a rated voltage. determine the power triangle for this opertaing voltage.
Maximum value of frequency deviation is fixed at 75 kHz for commercial broadcasting by radio. Modulation frequency W = 15 kHz, then find the transmission bandwidth of signal and deviation ratio.
a.) find the fourier coefficients of the exponential form b.) find the fourier coefficients of the combined trigonometric form c.) plot both the single sided and double sided amplitude and phase spectra
Are relativistic affects likely to make your calculation imprecise?
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