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In practice, it is usually better to wind the field coils on the rotor and supply the field current to them via slip rings.
As the rotor turns, the changing magnetic field experienced by the stator coils induces a single phase AC output voltage in the stator coils
A more sinusoidal waveform is produced - compared to the pulsing waveform produced by the AC Generator
Practical application of rc coupled amplifer
Explain n-type and p-type semiconductors. n - Type semiconductor: If small amount of pentavalent impurity (group V elements) is added to a pure semiconductor giving a large
transistor biasing stabilization problems
applications of dynamically induced emf
1. The voltage across a 1 - μF capacitor is given. Which is the sinusoidal expression for the current? a) 30 sin200t b) 70cos (800t - 20°) 2. At what frequency will the re
Q. Show Elementary Synchronous Machines? The polyphase synchronous machine operates with direct current supplied to the field winding (assumed to be on the rotor, which is usua
Write an m-file "myfourier.m" which takes two images, computes FFT, phase and amplitude and swaps the amplitudes between two images. function myfourier im1=imread('cameraman.pn
What is Ideal and Real Sources?
Q. Define Power-Supply Rejection Ratio? An op amp's ability to disregard changes in power-supply voltage is measured by the power- supply rejection ratio (PSRR), which is speci
Q. A filter is a network employed to select one range of frequencies while rejecting all other frequencies. A basic building block often used in integrated-circuit filters is shown
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