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A three-phase, 13 kV transmission line delivers 8 MVA of load. The per-phase impedance of the line is (0.01 + j0.05) pu,referred to a 13 kV, 8 MVA base. What is the voltage drop across the line
What is the minimum sampling frequency to be able to avoid aliasing if your system has 10Hz, 100Hz and 1500Hz mixed in a signal
A cuboid of Germanium (Ge) has contacts all over its 2 x 1 mmends and point contacts exactly half way along its 5 mm length, atthe center of the 5 x 1mm faces. A magnetic field can be appliedparalle
find the quasi-fermi levels and the change in conductivity of the sampleupon shining the light. electron and hole life times are both 10us. Dp(diffusivity of holes)= 12cm^2/s Dn(diffusivity ofelectr
for a Si conductor of length 5um, doped n-type at 10^15 cm^-3,calculate the current density for an applied voltage of 2.5 Vacross its legth. how about for a voltage of 2500V the electronand hole mob
Design a two-way radio link to operate over earth-Mars distances for data and picture transmission with a Mars probe at 2.5Ghz with a 5-MHz bandwidth. A power of10-19 W Hz-1 is to be delivered to th
A load operating at 2300 V rms draws 28 A at a power factor of 0.812 lagging. Find (a) the peak current in amperes; (b) the instantaneous power at t=2.5 ms assuming an operating frequency of 60 hz;
A load operating at 6400 Vrms draws 56 A at a PF of0.812 lagging. Find: (a) the peak current in amperes (b) the instantaneous power at t=2.5 ms assuming an operating frequency of 60 Hz
Two infinitely long coaxial cylinders ofradii a and b ( a > b) carry surface charge+ λ and -λ respectively. Find the E field in theregion inside the inner
What would the selection criteria and a pratical application be for a unitary, a modular and a rack mounted programmable controller
the color code on a resistor specifies the resistance as4.7kOhms. A multimeter measured the resistance as 4.688kOhms. What is the nominal resistance of the resistor
Draw a graph of V=IR for R=300ohms over the domain -3mA<1<3mA
A device operates at 30 degree C with a bandwidth of 8 KHz anda dccurrent of 1.75 ma. Find the total noise power, moise current and equivalent noise voltage.
A system has a powe gain of 52. Directivity is measured as 90 and the dissipated power in an antenna with a gain of 700 is 1.9 watts. what is the EIRP in watts and dBm
four loads are connected in series across 110 volts D.C.THE loads fail to operate.a voltmeter connected in succession across each device reads 0 across the first three loads and 110 volts across the
A coil has an inductance of 400 mH and aresistance, RL, of 10 Ω. The coil is connected in series with a 100 Ω resistor Racross a 240V - 50Hz supply voltage V. Sketch the circuit diagram
Two identical automobile headlamps are connected across a 12Vbattery. If the total current from the battery is measured to be6.5A, what is the current running through each head lamp.
If 1000J of energy is required to move 9x10^19 electrons through alamp having a resistance of 25Ω. Find the current through the lamp and the voltage
A 10 ohm resistor and 10 henry inductor are attached in series to a 10 volt DC supply. If the current i(0)=2.5 amperes, what is the current after 1 second
A measurement system uses an 8-bit A/D converter as output for itssignal in a range of 0 to 10 volts. What is the resolution for this measurement system If a7-bit A/D converter or a 9-bit A/D conver
consider a communication channel corrupted by noise. let X bethe value of the transmitted signal and Y be the value of thereceived signal. assume that the conditional density of Y given(X=x) is Guas
(a) Design a full subtractor cicuit with three inouts x, y,Bin, and two outputs D and Bout. The circuit subtracts x - y - Bin.Bout is 0 if no borrow is needed to complete the subtraction, and 1if a
The rectifier feeds a load of 200 W and is fed from the linevoltage (120 Vrms, 60 Hz) through a transformer. The diodesavailable have a 0.7 V drop when conducting. If the designer opts for a half wa
A voltage regulator circuit uses a Zenerdiode that exhibits a total voltage of 5.2 V at 20 mA and has aresistance Rz = 20 W. The regulator operates froma 10 V supply and has a 1 kW load. A) Use the
For the conditions below, sketch the energy band diagram for a Schottky barrier junction (semiconductoris n-type). Include the Fermi and vacuum level,Fm, Fs, and label all features ofinterest.