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An alarm is powered by 120 VAC, and the on/off state of the alarm is controlled by an EM relay. Design the interface between a computer output port and the EM relay. The dropout voltage is 3.5 V, an
Calculate the instantaneous power absorbed by the resistor, the instantaneous power absorbed by the capacitor, the real power absorbed by the resistor, the reactive power delivered by|the capacitor,
Given an object with a mass of 55 lbm, who starts at rest but experiences a constant horiz. force due to resultant force applied for 10 seconds. The work of the resultant force is 7,782 lbf*ft.
If V = 12sin( 2 pi 1800 + 45). What would you read on a DMM Would this voltage be for an inductor or capacitor What would be the frequency and phase What does the 12 stand for Explain.
Write a program that asks a user to input (one at a time) the four numbers to fill a 2x2 matrix. For each number entered, make sure the user knows which number is being entered.
A second method of development will recover only 50% of the ore deposit , but it will cost only $15 per ton of material removed.Subsequent processing of the removed ore recovers 300 pounds of metal
Determine whether the system described by (1) y[n]=log(nx[n]), (2) y[n]=sqrt(n)*x[n+1], (3) y[n]=x[n-2]u[n], where a is an integer and |a|>1, is (i) memoryless; (ii) invertible; (iii) causal; (iv
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