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The resistance of 8 copper wire is 0.64 W per 1000 feet and with a certain type of insulation it can safely carry 40 A without overheating. If the wire is carrying the maximum current:
a. What voltage (magnitude only) exists between the ends of a one-mile length of wire? Model the wire as a single resistor.
b. The current is flowing east to west in the conductor. Which end of the conductor has a higher voltage (potential)?
c. How much power is dissipated in the conductor?
A 200-kVA, 2300\230-V, 60-Hz transformer operating at rated voltage in the step-down mode is supplying 150 kVA at 0.654 power-factor lagging. Assume the transformer is ideal. Determine (a) secondary current; (b) impedance of the load; (c) primary ..
Why does search in game-playing programs always proceed forward from the current position rather than backward from the goal
Ted Williams hits a baseball with an initial velocity of 120 miles per hour (176 ft/s) at an angle of f = 35 degrees to the horizontal. The ball is struck 3 feet above home plate. You watch as the ball goes over the outfield wall 420 feet away
calculate the extraction efficiency and find the current and voltage needed to obtain the desired optical output. Once you know the current density choose Area and Find Vf that will give you the desired current density and current (If= Jf x A= Jn ..
Simulating shadow fading. Simulate a sample path of a shadow fading process for equispaced samples on a straight line. Assume a correlation distance Dc = 500 m and a standard deviation of σz = 7.5 dB (these values are from Gudmundson's paper).
Where x(nTs), found above, is the input and x (nTs) is the output of the quantizer. Let the quantization step be delta= 0.5. Plot the input-output characterization of the quantizer, and find the quantized output for each of the sample values
Determine the minimum signal to noise ratio (s/n) in dB required in each communication channel to achieve a data rate of 270 kbps?
A 2.5 meter long elastic cord is fixed at both ends. a) If the cord is vibrated at a frequency of 35-Hz, a n=3 standing wave is produced. with what speed do waves travel across the cord.
Use nodal analysis to find VO in the network given below. Identify and label each node otherwise you will lose your marks. Write each step of the calculation to get maximum marks and also mention the units of each derived value.
Identify five controls that require the operator to do two destict actions in order to activate the control? EXAMPLE depressing the clutch on a car so that the ignition key will start the car.
A half-wave rectifier circuit with a 1-Kwload operates from a 12-v(rms) 60-Hz household a 5-to 1 transformer having a center-tappedsecondary winding. It use two silicon diodes that can be modeled tohave a 0.7-v drop for all currents.
A 5-volt intelligence amplitude causes the frequency to change to ± 25 kHz. What will be the carrier frequency variation corresponding to an intelligence amplitude of 10 volts
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