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A small ac motor, draws 100 VA from its 120-Vrms, 60 Hz ac source and consumes 50 W. Find the rms current the motor draws from the supply.
Write a simple shell script called mathmagic that takes two arguments in at call time and returns to the stdout the value of the two items entered, the value of the two items added together, the value of the two items subtracted
An ideal n+/p diode has only the quasi neutral p region of length L illuminated with light such that GL electrons/cm3-s are generated uniformly throughout the region. There is no photo-generation occurring elsewhere in the diode.
The photoelectric threshold wavelength for Tungsten is 2300 Å. Find the energy in eV of the emitted electrons from the surface by ultraviolet light of wavelength 1800 Å.
A digital communication system employs differentially encoded BPSK modulation scheme with non-coherent (differential) reception. If the Eb/N0 is 8 dB, what is the probability of bit error for the system
What causes the current gain to decrease both in the case of a low collector current and at a high collector current?
Consider the half-wave rectifier below. Assume the transformer output has amplitude 10.0 V and the diode forward voltage drop is zero. (a) What is the average output voltage (b) What's the RMS output voltage
A cylindrical metal wire of radius r1 and conductivity of o1 has a core region of radius r2 replaced along the whole length with a metal conductivity of o2. Calculate the resistance of the wire, R, between the ends.
A dc power distribution cable has two #6 copper wires. The copper wire table in the textbook lists each wire as having resistance of Ro=.4028 ohms per thousand feet at temperature of 25C. The temperature coefficient of copper is alpha=.004 per C.
A 40-year old person wants to accumulate $500,000.00 by age 65. How much will she need to save each month, starting one month from now, if the interest rate is 6% per year
Given a four-volt peak to peak square wave, calculate the mean-square error in approximating the wave by only its fundamental sinusoidal component. Assume the average value is zero (no DC offset).
What is the sample period Ts?
The minimum stopping distance for a car traveling at a speed of 30m/sand is 60 m including the distance traveled during the driver's reaction time of 0.53 s. What is the minimum stopping distance for the same car traveling
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