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The waveform of an ac voltage can be expressed by V=180 sin(300t + 3):
a. Calculate the rms value of the voltage.
b. Calculate the frequency of the supply.
c. Calculate the phase shift in degrees.
In n-channel JFET, Ohmic region is separated from Saturation region by VP so called Pich-off voltage or VGS(OFF). What is the value if IDand VGS at this location and how we can calculate the value of VP from ID and VGS
Rotational and stray-lossesat full load are 5% of the output power. Calculate the power transferred across the air gap, the rotor copper loss at full load,and the electromagnetic torque at full nload innewton-meters.
The work-piece motion of a certain system is measured using an LVDT that outputs 12mV/cm. (i) If the output from the LVDT ranges from -12mV to 24mV, what is the maximum horizontal motion of the work-piece motion
A variant of the binary symmetric communication channel described in class is called a binary erasure channel. The transmitter sends a ‘0' or ‘1,' but at the receiver there are three possibilities: a ‘0' or ‘1' or ‘undecided bit..
A positive charge of magnitude q1 lies at the origin. Derive an expression for the incremental work done in moving a second point charge q2 through a distance dx from the starting position (x, y, z) in the direction -ax.
Design an AC source system that can be used to power 120 Vrms, 240 Vrms, and 208 Vrms single phase devices depending upon the particular connection terminals. The system should have no individual sources with voltages larger than 120 Vrms.
design a passive 1-pole rlc notch filter suitable for filtering out 60hz pickup noise. use complex impedance to
The following test data were taken on a 110-KVA, 4400/440- volt, 60-Hz transformer: Short Circuit Test: P= 2000w, I = 200 amp, V = 18v Open Circuit Test: P=1200w, I= 2 amp, V = 4400v Calculate the voltage regulation of this transformer when it suppli..
A radio wave that may be considered a uniform plane wave propagates through the ionosphere and interacts with some charged particles which are moving with a velocity a tenth the velocity of light in the direction normal to the magnetic field of t..
Two point charges of +3.0μF and -7.0μF are placed at x=0 and x=0.20m. What is the magnitude of the electric field at the midway point between them
1. Establish the minimum sampling rate in hertz. I'm not sure if my answers are correct. a) x(t) = 4 cos2(100πt) My answer: 100 Hz b) x(t) = 6 sinc(100πt) cos(200πt) My answer: 300 Hz
Now that you have gained some familiarity with solar cells and their characteristics, what are your impressions about the efficiencies of these devices What are some applications for solar cells that are currently being used Why is this technology..
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