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A junction employs Nd = 8x 10^17cm^-3 and Na= 2 x 10^ 17 cm^-3. The device is at 300K.
(a) determine the majority and minority carrier concentrations on both sides
(b) Calculate the built-in potential at
(i)T=250K
(ii)300K
(iii) 350K.
The voltage drops across three resistors in series are measured 10V, 15V, and 25V. If the largest resistor is 47 ohms, what is the value of the smallest resistor?
Plot the magnitude response (in dB) and the impulse response of the designed filter using MatLab.
Output levels of higher order products of a linear amplifier, If a tone is put into an amplifier, and its amplitude is increased by 1 dB, how much will the amplitude of the third-order products increase in dB?
Using many resistors and the DMM, try to determine what digits each colour band represents. Briefly explain your method and your findings in the space below.
What annual revenue is required to cover fixed costs? What will be the annual variable costs? How much will electricity cost per kWh?
What RF bandwidth must the radio link provide if the modulation is binary phase shift keying (BPSK)?
A 240kW 500V 1750 r/min separately excited dc generator has an overall efiiciency of 94%. The shunt field resistance is 60 ohms and the rated current is 5A. The I^2 R loss in the armature is 0.023 pu.
The op-amp circuit measures the changes of temperature in a system. The output voltage is given by v0(t) = -R(t)vi(t). Suppose that the temperature in the system changes cyclically after t = 0, so that R(t) = [1 +0.5 cos(20πt)] u(t) and let the in..
Create a program using AsmIDE, which utilizes the Fox 11 68HC11 microcontroller board: Speech timer where max time is 5 minutes Use the switches for:
Explain the process of processor development
Design an interface for a ±24 V, 500 mA geared DC motor. The time constant of the motor is 10 ms. Include software to adjust the delivered power from 0 to 100%.
How to identify the starting and ending leads of winding in a motor which is having 6 leads in the terminal box.
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