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A step up chopper has an input voltage of 200V and an output voltage of 500V.
the ON time of chopper is 105micro sec . the time period of the chopper is:
Suppose we used the thumb rule that the optical line of sight distance from an antenna h meters high to the horizon,in kilometers is 4√h. what is the radius of the earth in kilometeres that would justify this approximation
Define a key sequence to unlock the door
In AM, spectal overlap is said to occur if the lower sideband forpositive frequencies overlaps with its image for negativefrequencies. what condition must the modulated wave satisfy if we are to avoid spectral overlap
A 1.05 m uniform bar is supported by two cables. A mass of 35.0 kg is placed a distance of 0.25 m from cable A. The mass of the bar is 15.0 kg. Determine the force in each cable.
If a computing system needs two 32Kbytes to store its program and 16Kbytes to store temporary data, will a 16-bit address bus sufficient
How many turns are required for a circular loop of 100-mm radius to develop a peak emf of 10mV if the loop rotates 30r/s in the earth's magnetic field Take B = 60E-6T.
Two large flat charged plates are fixed parallel to one another in a large tank of distilled water (Er=81) with a total surface charge of 41.25×10-7 C on each plate (with opposite polarities). The plates are square, 4 m each side.
An autotransformer with a total of 600 turns has its secondary windings embracing 200 turns. The 600 turns are connected to a 60-Hz, 2400-V driving voltage. A load connected to the secondary draws 4.8-kVA at 0.6 power factor lagging.
An ideal 3 phasemachine runs at 1800 RPM with a torque or 20 Nm. It is connected to a 220 V line-to-linesource and draws a current of 14 A. Determine the power factor and the per phase magnetizing reactance for the machine.
y[n + 2]- y[n +1]+ 0.5y[n] = 4x[n +1]+x[n] a. Find the system's transfer function b. Find the system's impulse response c. Find its unit step response when the ICs are y[-2] = 2 and y[-1] = 1.
Derive an expression for the magnetic field at distance r from the axis where r
What is the maximum power dissipated in the load when the Thévenin voltage is 21 V cos(52 rad/s t + 82°), the Thévenin impedance is 102 -j 184 ohm and the load impedance is 102 + j 184 ohm
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