What is The unit of a computer that does the actual computing or processing?
The actual computing is done on a Random Access Memory (RAM) chips under the control of a ROM (Read-only memory) chip. Collectively these are described as the Central Processing Unit (CPU)
How do you calculate the peak-to-peak value of a sine wave?
All AC voltages and currents are quoted as root-mean-square (rms) values where, for a sinusoidal waveform, the rms value is 0.707 Vmax or 0.707 Imax.
From this, you can determine the value of the amplitude Vmax or Imax:
Vmax = Vrms/0.707 or Imax = Irms/0.707
Once you know the value of the amplitude (Vmax or Imax), simply double it to determine the peak-to-peak value.
Answer: If your receiver have three decoders build in you can set the code differently, if it only have one decoder you set the dip switches on the sensors the same as the receiver, but then the receiver won't be able to identify the sensors, it won't be able to tell what sensor send the signal. This problem can be solved by using a micro processor system like the Multi Zone from Micro Developments that can identify 65535 different sensors and there is no dip switches to set each sensors code and ID is pre programmed on the sensor
What resistor makes 10v into 5v?
You can't use one resistor to bring a voltage down, you have to use two in series in a voltage divider configuration, that is two resistors of the same value in serie between positive and negative, then you will have 5V between negative and the point between the resistors, any value can be used depending on the current jou are going to draw, note: you can not use to small a value at least 1K or up, if the value is to small the resistor will get to hot and it can burn out or it can burn your power supply or you can simply use a 7805 voltage regulator chip, it is inexpensive and easy to use, it only have 3 pins 1 = input, 2=GND and 3 is your output, one can get it in many deferent voltages 7803,7805, 7808, 7812 etc. Note: you can even adjust the output voltage between 5V and the RMS value of your power supply, by connecting a pot between GND and the center pin of the regulator, a smoothing cap is needed between GND and the input and one between GND and the output 1 to 10 mf 16V
What is neutral shift how is it neccesarry?
Neutral shift describes the phenomenon that happens when an AC motor drive shifts the neutral point of the motor. This is important because it can significantly interfere with the motor's ability to function if proper precautions aren't taken care of.
Design a synchronous 4-bit binary counter?
http://ftp.csci.csusb.edu/schubert/tutorials/csci310/f03/dw4bit.pdf
What is clipper in electronic devices and circuit?
clipper is an AC application of diode. The Clipper clipps off a portion of the input signal waveform without distorting the remaining part of the alternating waveform. We can use different type of alternating waveforms as input such as sinusoidal, Triangular, square etc. There are different types of clippers e.g. series clipper, parallel clipper etc. but the method for solving all the type of circuits are same. So there is no need to remember the procedure for one particular clipper circuit. There are different types of clippers e.g. series clipper, parallel clipper etc. but the method for solving all the type of circuits are same. Now let us discuss the procedure with the help of a problem. Suppose we have given a clipper circuit shown below: Because clipper is an AC application of diode. So we apply an AC signal at the input Vi. Our aim is to find out the waveform of Vo. The solution steps are: Step 1 : First of all analyze the circuit by bifurcating the input waveform in positive half cycle and negative half cycle.
Step 1.1 : Positive half cycle : Positive half cycle is equivalent to a battery of positive polarity and variable potential.
Step 1.2 : Negative half cycle : Negative half cycle is equivalent to a battery of negative polarity and variable potential. Step 2 : Now analyze the circuit with positive half cycle.
The next step is to check the condition of diode i.e., whether the diode is forward bias or reverse bias.
In the circuit shown above it is clear that the diode is forward bias and hence equivalent to short circuit (because it is ideal diode).
Now analyze the variation of Vo.
It is clear that And because Vi varies sinusoidally, so Vo also varies sinusoidally. Step 3 : Now analyze the circuit with negative half cycle The next step is to check the condition of diode i.e., whether the diode is forward bias or reverse bias.
In the circuit shown above it is clear that the diode is reverse bias and hence equivalent to open circuit (because it is ideal diode).
Now analyze the variation of Vo.
It is clear that Step 4: Now combine these two waveform.
What makes a device an ergonomic device?
when it is "designed for safe and comfortable interaction between human beings and machines."
Ergonomic means just this:
What is the shortest period of time?
The smallest time increment of time is the Planck time, 10-42 seconds (which I think is 10 to the million, million, million, million, million, million, millionth of a second). It is the time that light takes to travel the smallest measurable distance. Also see, http://www.khouse.org/articles/1997/23/
What are the reasons traffic lights are used?
1] To regulate the flow of traffic
2] To separate traffic flows that are prone to collide with one another thus preventing or minimising such occurrence.
How do you make a photon cannon?
To make a Photon Cannon, one must first understand what a photon is. A photon is a light particle, plain and simple. A Photon cannon would be something that shoots out photons, like a strong flashlight or a laser pointer. By combining two mitheral hammers that cost 1610 gold in the game dota on warcraft 3 plus and extra 1200 gold for the recipie and this creates a stygien desolator which is more commonly known as the photon cannon and normally results in gg(good game).
What is the quartz technology of a watch?
A quartz crystal can be induced by an electrical current to vibrate. This property is used to provide a signal to drive the mechanism of a watch. The frequency of the vibration can be set by the correct cutting of the crystal's size and shape, and is highly accurate and stable. By choosing the appropriate frequency of the crystal [usually in the hundreds of thousands of cycles per second [measured as 'hertz'] and dividing this frequency down to one per second a signal can be made to drive a motor or electronic display etc. once per second with great accuracy.
How long have lasers been around?
Since mid 60's
Light Amplification by Stimulated Emission of Radiation
How can i use USB flash drive in Vista?
Just plug it in to your PC and Vista will pick it up, if not, there mis something wrong with your installation
In short, Light Amplification by Stimulated Emission of Radiation. Now, to explain. In a laser, there is something called a MEDIUM. This is where the photons are made. In all substances, there are atoms. In the atoms, there are electrons. The electrons are on orbits around the nucleus of an atom. There are more than one orbiting each atom. The electrons are EXCITED by getting hit by photons. The electrons absorb the energy from the photons they are hit by. To be on a certain orbit, the electron needs to have a certain amount of energy. When an electron is hit by a photon, it GAINS ENERGY so is jumps up to another orbit, because it has too much energy to stay on it's normal orbit. The electrons, though, ALWAYS have to go back to their original orbit (a law of physics) and in doing so, it needs to release energy in the form of a photon. Mirrors focus the light and it then comes out of the gun. There are more factors, but they are complicated and I cannot explain them for now. The main thing is the Excitation of the electrons then the release of the photons.
How do computers use microchips?
They move electrical signals through predetermined logic gates to execute an assembly instruction billions of times a second(at around the year 2000 and still today 2008 just improvents in architecture and the way the signals move are the usual reason they are more powerful now)
Refer to what is an assembly instruction and/or what are logic gates if still in confusion.
What is the design procedure for clamping circuits?
Clamping circuits use diodes and capacitors. First, the first circuit must be set up, then a?æsine wave should be input into it. The input and output should be observed and adjusted as necessary; then, the process should be repeated for the other circuits.
Is temperature directly proportional to frequency?
Temperature is only sometimes directly proportional to frequency. Temperature however is not always directly proportional to frequency in all cases.
A linear motor or linear induction motor is essentially a multi-phase alternating current (AC) electric motor that has had its stator "unrolled" so that instead of producing a torque (rotation) it produces a linear force along its length. The most common mode of operation is as a Lorentz-type actuator, in which the applied force is linearly proportional to the current and the magnetic field (F = qv × B). Many designs have been put forward for linear motors, falling into two major categories, low-acceleration and high-acceleration linear motors. Low-acceleration linear motors are suitable for maglev trains and other ground-based transportation applications. High-acceleration linear motors are normally quite short, and are designed to accelerate an object up to a very high speed and then release the object, like roller coasters. They are usually used for studies of hypervelocity collisions, as weapons, or as mass drivers for spacecraft propulsion. The high-acceleration motors are usually of the linear induction design (LIM) with an active three-phase winding on one side of the air-gap and a passive conductor plate on the other side. The low-acceleration, high speed and high power motors are usually of the linear synchronous design (LSM), with an active winding on one side of the air-gap and an array of alternate-pole magnets on the other side. These magnets can be permanent magnets or energized magnets. The Transrapid Shanghai motor is an LSM.
What is the history of the Doppler RADAR?
Doppler RADAR measures the speed of objects using the Doppler effect (discovered by the Austrian mathematician and physicist Christian Andreas Doppler in 1842 at the Prague Polytechnic) in addition to the position measured by ordinary RADAR.
The earliest version of Doppler RADAR was introduced by the U.S. Navy during WW2 on night fighters.
Doppler RADARs are used now in aviation, sounding satellites, meteorology, police speed guns, radiology and healthcare (fall detection and risk assessment, nursing or clinic purpose), and bistatic radar (surface-to-air missile).
How did the stove change the world?
Stoves have made it easier to cook. They have also made it safer to cook. Cooking on an open fire is dangerous for families.