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Define power factor.
Give a straight forward answer ASAP INTERVIEW
Determine the HV-side fuses needed to protect a 3x140kVA, 12470/208 YNyn0 distribution transformer bank. Show and explain step by step the procedure you employ to solve this question. Use the type K and type T fuse curves
task 1nbsp determine the bandwidth and expected information capacity of typical communication systems q1a describe the
What is the applied voltage? What is the resulting frequency of the waveform? What is the corresponding rotor shaft speed? Verify that the simple motor rotates, and note how much voltage is needed to turn the motor.
What value of current needs to be passed through this coil in order to produce a flux of 250 μ Wb in the toroid, if under these conditions the relative permeability of the toroid is 300.
A 50Ω transmission line has a receiving end load impedance that produces a standing line wave with a trough on the line of 4.1V. The maximum voltage on the line is 8.14 absolute peak. The first maximum voltage location is 0.342 wavelengths away fr..
The turning moment diagram for a multicylinder engine has been drawn to a scale 1 mm = 600 N-m vertically and 1 mm = 3° horizontally. The intercepted areas between the output torque curve and the mean resistance line.
A transformer core with an effective mean path length of 10 in has a 300-turn coil wrapped around one leg. Its cross-sectional area is 0.25 in2, and its magnetization curve is shown in Figure 1-10c. If current of 0.25 A is flowing in the coil, wha..
The transform of the Gaussian pulse g(t) = exp(-πt2) is exp(-π f2). Find thetransform of the modified pulse g(t)= exp(-100πt2). b) Find the bandwidths of the original and modifiedpulses using G(fBW)= .707 G(0). (Hint you have to usethe natural log..
A Si PIN photodiode has an i-Si layer of width 20 µm. The p+ layer on the illumination side is very thin (0.1µm). The PIN is reverse biased by a voltage of 100 V and then illuminated with a very short optical pulse of wavelength 900 nm.
The coefficient of realexpansion of mercury is 0.00018/°C. Find the coefficient of apparent expansion of mercury in glass
If not, find another value of T consistent with the information given.
A six pole, 400 V d.c. motor draws 110 A from the supply. The shunt field resistance is 200 Ohm and the armature resistance is 0.5 Ohm. The armature is wave wound with 600 conductors operates at a speed of 1200 rev/min when supplying full load.
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