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A power line insulator partially fails and 10A pass through the structure to the tower's ground. The tower's ground is a hemisphere with a radius of 0.5m. The soil resistivity is 100Ωm. Assume that a man touches the tower while standing on the ground. Compute the current going through the man, assuming his body resistance is 1000Ω.
Obtain the z transform of the cosine function.
An AM receiver, operating with a sinusoidal modulating signal and 80 percent modulation, has an output signal-to-noise ratio of 30 dB. a) What is the correspoding carrier- to - noise ratio
Problem 1: Figure 1 represents a simplified diagram of a spring-supported vehicle traveling over a rough road. Determine the equation for the amplitude of W as a function of the speed, and determine the most unfavorable speed.
Derive an expression for the optimum value of the avalanche gain opt M for which the signalto-noise ratio (SNR) becomes optimum by using the following expression for the excess noise factor: Fa( M)=KM+ (1-K ) (2-1/M). Assume that M^3 >> M .
A series circuit consists of a 220V- source and 10k-ohm, 40k-ohm, and 60k-ohm resistors. Draw the circuit and find the voltage across each resistor.
how many bits are required to represent the decimal numbers in the range from 0 to 999 using straight binary code?
The real power consumed by the circuit f. The reactive power consumed by the circuit g. The impedance of the circuit
Polonium (Po) is the only material which forms a simple cubic crystal (i.e., it is not FCC or BCC) structure with atoms at the corner positions. It is a metal (but it is radioactive so it has very few engineering applications!). Its atomic number ..
The experimental units were 36 enclosures set up in the shallow water, each with room for 150 eggs. Describe how you would randomize the treatments to the experimental units.
We will weigh objects by a strain gauge or R = 120 Ohms, GF= 2.02 mounted on copper column of 6-in. diameter. Find the change in resistance per pound placed on the column. Is this change an increase or decrease in resistance
A silicon diode with a breakdown voltage of 2000V that is conducting a forward current of 2000A is turned off with a constant diR/dt=250 A/s. Roughly estimate the time required for the diode to turn off.
a) Design a band-pass filter consisting of an RC high-pass filter with a cutoff frequency of 300 Hz and an RC low-pass filter with a cutoff frequency of 3400 Hz. Carefully select R and C of each filter so that one filter does not load the other
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