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Show that the most probable electron energy in the conduction band of a semiconductor is (kT)/2 above the bottom of the band (assume that the Fermi level is several kT below the conduction band).
Assuming unity power factor, determine the full load currentsin the primary and secondary windings At full load, determine the power losses in the primarysecondary resistances. If the input power to the transformer at full load is 1000kw,determine th..
Derive equations for the capacitance, and resistance across the dielectric of a coaxial line of inner conductor radius a, and outer conductor radius b, and permittivity ε.
A permanent magnet generator has Kt = 0:02Nm/A . The terminal voltage is six volts. It is spinning at 2500 rpm. It is connected to a load with a resistance of 30W. Determine the counter torque and the power input.
e) What is the value of C such that the energy stored in the capacitor equals the energy stored in the inductor f) How much energy is stored in the 3.9?F capacitor Use the formula for the energy. g) What is the power dissipated in the resistors
A date link protocal uses the CRC16 polynomail for error detection A) suppose the data block (including the 16 check bits) has n=1000 bits how many possible received black are there. B)On a particular transmission a lot of errors occur in the receive..
Draw an accurate phasor diagram of the four voltages from the R-L-Ccircuit. Derive three expressions for the phase angle between Vsand Vr from the phasor diagram.
send the pattern 0x99 to Memory Location VAR2 and call the delay function one more time. Repeat this operation eight times using a for loop. Assume that the bus clock frequency is 24MHz. Write the delay using inline assembly language.
The repulsive force one exerts on the other when they are 20cm apart is 1.35 X 10-4 N. after the balls are touched together and then represented once again to 20cm, now the repulsive force is found to be 1.40 X 10-4 N. find the charges q1 and q2.
Design the power requirements for load 3 so that the source voltage and the current drawn from the source are in phase. Draw the power triangle for load 3 and label all sides and the power factor angle with appropiate numerical values.
A MOSFET transistor is being used as a converter switch in a 100v system. It is switching at 50 KHz and has a linear transition time of 3us. The full load current is 40 amps. - How much average power is being wasted due to switching
State briefly the consequences of opening the secondary of a current transformer when it is in service. State the precaution to be taken should disconnection be necessary.
(a) If E=Exax andH=Hyay, begin with Maxwell's equations anddetermine the second order partial differential equation that Ex must satisfy. (b) Show that Ex=E0 cos (ωt-βz) isa solution of that equation for a particular value of β.
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