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1. Calculate the dc resistance in ohms per kilometer for an aluminum conductor with a 3 cm diameter.
2. Calculate the dc resistance in ohms per mile for a hard-drawn copper conductor with a 1 inch diameter. (Note that 1 mile = 1.609 km).
3. Calculate the inductive reactance of this line in ohms.
4. Assume that the 50 Hz ac resistance of the line is 5% greater than its dc resistance, and calculate the series impedance of the line in ohms per km.
Gaussian random variable W is known to have P[W>4] = 1/2. Based on this information, (a) sketch its possible PDF. (b) Now also assume that Var[W] is very small. Refine your sketch in the first part taking into account this new information.
A decorative snowman with mass m = 15kg slides down a roof that is inclined at an angle of 30 º from the horizontal. The snowman slides a distance of 6.0m down the roof and off the edge, located 8.0m above the ground.
write an 8051 program that would generate a 200khz, 50% duty cycle, square wave at P1.0.Use Timer 0 for the delay. Ignore the overheads cycles due to the instructions in the loop. Assume 12 MHz clock. All data must be hex.
Consider a finite state machine that generates z = 1 when the previous four values of input variable 'w' are either '1001' or '1101'. Solve this problem by Mealy and by Moore. Show the state diagrams and the state tables.
A 10-mV signal source having an internal resistance of 100 k Ohm is connected to an amplifier for which the input resistance is 10 k Ohm, the open-circuit voltage gain is 1000 , and the output resistance is 1 k Ohm.
A radio wave that may be considered a uniform plane wave propagates through the ionosphere and interacts with some charged particles which are moving with a velocity a tenth the velocity of light in the direction normal to the magnetic field of t..
The mean and the variance of a binomial distribution with parameters n and theta are 12 and 3. Find the probabilities: a. (P X or equal 7).
You are to design a continuous-time, second-order, lowpass filter that has the following specifications.
As a project manager on a product development team for a fast responding digital thermometer useable in high temperature applications (degrees C), you are asked to create a product development plan that addresses items
A candidate material for a turbine blade application oxidizes by diffusion of metal atoms through the oxide to the metal surface, where metal and oxygen react to form the oxide. After 10 hours at 550*C, an oxide layer 8µm thick has formed.
A copper conductor has a dia of 0.06 in and it is 1200ft long. Assume that the current total (dc) carried is 50A. Find the total resistance of the conductor. What current density exists in it What is the dc voltage between the conductor ends
In doing so, they learned through laboratory studies that the maximum growth rate of the bacteria will be 0.66 day -1 and that the half-saturation constant will be 64.5 mg L-1.
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