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A balanced three-phase load is connected to a balanced three-phase supply via a transmission line. What must be the readings on the two wattmeters, the ammeter, and the voltmeter
A zippy little electric car is equipped with a 175hp motor. a) How many kW are required to run the motor if we assume ioo percent efficiency in converting electrical power to mechanical power
Determine the net chage delta Q that flowed through a resistor over teh specified time interval for each of the following currents: (a) i(t) = 0.36A, from t=0 to t=3s (b) i(t) = [40t +8] mA, from t=1
Determine the number of coulombs of charge produced by a 12 A battery charger in an hour. A lightning bolt carrying 20,000 A lasts for 70*10^-6 s. If the lightning strikes a tractor, determine the c
A portion of the wave will reflect from the load and propagate back down the line to arrive at the input once again. Find the power that returns to the input and express this as a loss in decibels w
A signal has a fundamental frequency of 1000 Hz. What is its period? Assume the signal has a peak amplitude of 1 Volt and that the instantaneous power is equal to the square of the voltage, then com
Explain what the cumulative probability distribution function indicates in this case. If the rms value is given by 2 sigma, compute the percentage of time that a signal is 12 dB or more below the rm
If you have a 30 VDC - 4A power supply and need to power two 24VDC - 0.8A MFC (mass flow controller), create a circuit that divide the voltage and can handle the power.
How does a transistor switch compare to a mechanical switch. In other words, a mechanical switch when it is ON has zero impedance. What about the transistor switch.
A full wave rectified current has a peak value of 20 A and a period of 2ms. Assume the current is flowing in a 50 ohm resistance. Tabulate frequency, peak values and average powers of the first four
A consumer protection agency conducts opinion polls to determine the quality (excellent, good, fair, bad) of products imported. if the agency conducted a poll in wich
With |V| = 100 V, the instantaneous power p(t) into a network N has a maximum value 1707 W and a minimum value of -293 W. Find a possible series RL circuit equivalent to N.
(1) How do you measure frequency with DMM multimeter (2) Give an example of the power that a typical piece of equipment uses. Please list the sources lor how you obtained the value.
Find out the birthday (month and day but not year) of a randomly chosen person. What is the sample space of the experiment. How many outcomes are in the event that the person is born in July
The 16giga-byte (GB=2^30 bytes) flash memory chip for an MP3player is 11mm by 15mm by 1mm. This memory chip holds 20,000photos. a) How many photos fit into a cube whose sides are 1mm
An urn contains N balls numbered 1 to N. Someone draws n balls(without replacement) from the urn, where 1<=n<=N. What is the probability that the lowest number drawn is k, where 1<=k<=N
How many volts must be applied to a 3- ohm resistor to result in a power dissipation of 752W 3) A 0.27-k ohm resistor is rated 2W. Compute the maximum voltage that can be applied and the maximum
The lamp is then inserted in a DC circuit and it is noticed that as the voltage increases the resistance also increases. How do you explain this apparent contradiction with Ohm's law Why does the la
find the complete functions, p(t) and w(t) supplied by the element, not just a number, and graph p(t) and w(t). Choose appropriate intervals of time for your graphs. Assume that both v(t) and i(t) a
at the frequency f=12khz, a filter is designed to attenuate the input signal by 78db, find the amplitude of the output signal if the 12khz input has an amplitude of 1V.
Consider points P(2,4,3) and Q(1,-5,2) in three dimensional space: Find the position of vectors r1 and r2 for P and Q in terms of unit vectors i,j,k Determine graphically and analytically the resultan
A consumer protection agency conducts opinion polls to determine the quality (excellent, good, fair, bad) of products imported. if the agency conducted a poll in wich 1000 randomly selected individ
design a multirange ammeter with ranges of 1-10mA,0-100mA, and 0-1500mA, using a 5mA movement whose internal resistance is 3.8ohms. draw a circuit diagram of the meter.
A series RLC circuit is connected to a voltage source x(t). The output y(t) is taken across the capacitor. The negative side of x(t) and y(t) is the common ground. The values of the elements are: R=
Design an amplifier circuit to amplify the small output voltage of a transducer of 50mV peak to deliver an output voltage of 8V peak to a 10k ohm load. (This design will produce 1 simulated circuit