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A single core cable for66kV three phase system has a conductor of 2 cm diameter and sheathof inside diameter of 5.3 cm. It is required to have twointer-sheaths so that stress varies between the same maximum andminimum values in the three layers of dielectric. Find the positionof inter-sheaths , maximum and minimum stress and b voltages ontheinter-sheaths. Also find the maximum and minimum stress when inter-sheaths are not used.
a bar of n-type germanium and we place an E field going to the right across it and create a pulse of excess minority carriers (holes) in the center of the bar at time t=0. In other words we are performing the Haynes Shockley Experiment on the bar
a) Find and plot the straight-line approximations to the amplitude and phase response bode plots b) sketch the approximate amplitude-response bode plot od this system using the straight-line approximation and approximate amplitude values at the br..
What is the purpose of core in hollow solder wire What is tinning, and why is it important Why is safety so important when soldering Why has lead-free solder replaced lead-based solder
a.) Plot x[n] as a function of n and use the definition of the z - transform to find x[z]. b.) Use the z - transform of u[n] and properties of the z - transform to find x[z]. Verify that the expressions obtained above for x[z] are identical.
The probe band limited signal with fmax= 1Mhz was transmitted during the time T0=2 minutes. a) Find the maximum number of samples (N) that can be sent through the channel during T0 without losing of information. b) Find the sample rate (samples/s)
How many voice channels are carried by a E1 transmission given 8 kHz sampling and 8 bit words? Why is an end of frame marker always required in a digital telephony system?
1. Find IC, IE and IB for a PNP transistor if IS = 10-16 A, ßF = 75, ßR = 0.40, VEB = 0.75V and VCB = +0.70V. 2. The total transport current iT traversing the base of a BJT is determined by IS, v BE and v BC.
The power amplifier in a home theater amplifier has an output power of 200 watts. Assuming a Class B amplifier with the maximum theoretical efficiency is used, find the DC power delivered to the amplifier.
Assume dual rail logic. Dual rail logic means that both a variable and its complement are available as inputs to the logic block, such that an inverter is not needed to generate B' from B.
The following measurement were made on a two-port resistive circuit. With port 1 open, V2 =15V, V1 = 10 V, and I2 = 30 A. With port 1 short-circuited, V2 = 10 V, I2 =4 A, and I1 = -5 A. Find the parameters of the z-parameter two-port.
Find out the voltage that must be applied to the high voltage winding in order to provide rated voltage at the load under full-load conditions at 0.80 lagging power factor.
The input signal (inflow minus outflow) to an integral process varies sinusoidally at a radian frequency, omega i. of 0.025 rad/s. The output signal varies sinusoidally at the same frequency with an amplitude of 10%.
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