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Electrons and holes are moving in a uniform, onedimensional electric field E = +2500 V/cm. The electrons and holes have mobilities of 700 and 250 cm2/V · s, respectively. What are the electron and hole velocities? If n =1017/cm3 and p =103/cm3, what are the electron and hole current densities?
4H-SiC is doped with 2 x 1017 cm-3 nitrogen donor atoms (Ec - Ed = 90meV). Use Nc = 4 x 1020 cm-3. a. Calculate the electron density at 300 K. b. Calculate the hole density at 300K after adding 2 x 1018 cm-3 aluminum acceptor atoms
Considering that the only parameters known are the input line-to-line voltage of 415V rms (f=50Hz), the firing angle (a= degrees) and the overlap angle (b=15degrees), calculate the Power Factor as seen from the input AC
The nickel- cadmium (nicad) battery is a secondary battery, meaning it can be recharged. it has the following reactions occuring during discharge: A nicad battery has .87 g of cadmium, which is the limiting reactant.
Calculate the percentage second harmonic distortion present in the output. Calculate the percentage error in the output voltage compared to its ideal value at the instant of time when t= 1/3200 seconds.
Design channel coding performance simulator that compares two channel coding technique X and Y . You can provide pseudocode or block diagram of the simulator.
generated by a loud speaker is reflected at two different walls with reflection coefficients r1 and r2. the signal x(t) recorded by amicrophone close to the loud speaker, after sampling is
Find the appropriate subchannel modulation format (note: the number of constellation points in the modulation mapping scheme should be the power of two).
A conducting sphere in free space has a radius of a= 10cm. the capacitance of the isolated sphere is C= 4oa. now let's coat the sphere with a dielectric with fr= 3, and the thickness of the dielectric layer is d.
c) Find the output y(t) in response to the input x(t) = 6 u(t), where u(t) is the unit step function. d) Find the output y(t) in response to the input x(t) = δ(t) A linear system has the system response function H(s)= -7/(s+4)
a. The mass of an electric car is 900 kg including the passengers. A single motor mounted on the front wheels drives the car, and the radius of the wheel is 0.3 m. The car is going downhill at a speed of 50 km/hr, and the slope of the hill is 30 d..
A conductor 1 cm long is oriented parallel to the z axis a distance r = 25 cm from the origin and rotates at a speed of 1200 revolutions / minute. Find the voltage induced in the conductor if the driver rotates
Design a circuit which realizes this filter using Sallen-Key configuration. Find all the values of the circuit elements and determine the DC gain. For sake of easy availability of parts to build the circuit, chose the capacitors needed to be 0.01..
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