What is one different between a galvanometer and an electric motor?
Well, darling, a galvanometer is a device used to detect and measure small electric currents, while an electric motor is a device that converts electrical energy into mechanical energy to produce motion. So, in simpler terms, one tells you how much juice is flowing, and the other one actually does the heavy lifting. Hope that clears things up for you, sugar!
Advantage and disadvantage of fixed bias circuit?
Advantages:
1) This is a simple circuit which uses very few components
2) The operating point can be selected anywhere in the active region of the characteristics by simply changing the value of Rb.Thus,it provides maximum flexibility in the design.
Disadvantages:
1) Thermal stability is not provided in the circuit.Thus Q-point is not maintained.
Ic = β Ib + Ico
Ic = β Ib
2) Since Ib is already fixed,Ic depends on β which changes unit to unit and shifts the Q-point.Thus the stability is very poor.
How do the implications of slow bandwidth affect application design?
If you know that there will be slow bandwidth, then you must design the application in such a way that the amount of data transferred is reduced. Some optimizations may be required; or some sacrifices may have to be made, such as showing less images, or images in a lower quality.
What happens when you amplify an analog signal?
Well, when you amplify an analog signal, you're basically just making it louder. It's like turning up the volume on your favorite song, but instead of music, it's an electrical signal. So, you're boosting the strength of the signal without changing its fundamental characteristics. Just be careful not to crank it up too much or you'll end up with a distorted mess.
What are the limitations of h parameters?
The h parameters, also known as hybrid parameters, are used to model the behavior of a two-port network. One limitation of h parameters is that they are only accurate for linear circuits and do not account for non-linear effects. Additionally, h parameters are frequency-dependent, so they may not accurately represent the circuit's behavior across a wide range of frequencies. Finally, h parameters can become cumbersome to work with in complex circuits with multiple interconnected components, requiring more advanced modeling techniques.
A material that allows electrons to flow freely is called a?
A material that allows electrons to flow freely is called a conductor. Conductors have low resistance to the flow of electric current due to the presence of free electrons that can move easily through the material. Common examples of conductors include metals like copper, aluminum, and silver. These materials are used in electrical wiring and circuitry to facilitate the movement of electrons.
What is a mechanical voice transmitter?
Oh honey, a mechanical voice transmitter is just a fancy term for a device that converts sound into electrical signals for transmission. It's like a high-tech megaphone, making sure your voice can be heard loud and clear without you having to shout your lungs out. So next time you need to amplify your voice, just remember to grab one of those bad boys and let it do the work for you.
How big does an EMP have to be to take out a car?
Oh, dude, an EMP (Electromagnetic Pulse) would have to be like super strong to take out a car. It would need to generate enough energy to disrupt the electronic systems in the car, which is like a lot of power. So, like, it's not something you'd see in your everyday sci-fi movie, you know?
What is current coil and voltage coil?
The current coil is one through which the current of source can pass. This coil is connected in series. The voltage coil is connected parallel to the applied voltage. In the current coil the quantity of current flowing is proportional to the current flowing in load while in the voltage coil, current flowing is proportional to applied supply voltage. The voltage coil current is independent of current flow in load. For a complete understanding, please refer to a watt meter diagram.
Why do people call the microphone with that name instead of macrophone?
microphone coined from Gk. mikros "small" + phone "sound" (see fame). Modern meaning dates from 1929, from use in radio broadcasting and movie recording. Earlier, "telephone transmitter" (1878) and "ear trumpet for the hard-of-hearing" (1683). Of the two spellings of the short form of the word, mike (1927) is older than mic (1961).
So they call it micro-phone due to the fact that it will record/trasmit even the smallest of sounds.
Macrophone has recently been coined by persons in the (voice over IP) field or VOIP as (a large sample of a recording or transmission).
Is a potentiometer and voltage regulator the same thing?
No. A potentiometer is a variable resistor that allows you to set a voltage ratio or to adjust a resistance in a circuit. A voltage regulator, on the other hand, is a device that responds to changes in load, making automatic correction of output voltage. If you increase the load on a potentiometer, the output voltage will change, but not so (within limits) for a voltage regulator.
However, you can use a potentiometer in a voltage regulator to make the output adjustable.
Differetiate between solid earthing and ELCB?
ELCB is the connection to the direct earth path using protective device.while solid earthing is without protective device.A form of ELCB should be installed when direct earth path of low enough impendance can not be obtained.
What is SMD Ceramic Capacitor?
A surface-mount device (SMD) ceramic capacitor is a type of electronic component used in circuit boards for filtering, decoupling, and bypassing applications. It is made of ceramic material with conductive plates on either side, allowing it to store and release electrical energy. SMD ceramic capacitors are popular due to their high capacitance values, low cost, and excellent stability over a wide range of temperatures and frequencies. They are typically small in size and can be easily soldered onto the surface of a circuit board.
Why do metal conduct electricity?
Steel, iron, copper, aluminum, gold, silver, mercury, lithium and all other metals and most metal alloys conduct electricity very well compared to most other compounds.
With the discoveries in solid state physics of the 20th century we learned that metals are collections of atoms which have somewhat unusually properties of the electrons. In metals the outermost electron (sometimes two) of the atoms is not specifically associated with that one atom but is free to associate with atoms far and wide. We say these are delocalized electrons. Since the electrons are not attached to specific atoms, it takes very little energy to move them. As a result, any small voltage causes a large electron flow in a metal.
This movement or flow of electrons is called electricity so this is why metals conduct electricity.
Aside: Metals are not the only materials that conduct electricity, they just do it especially well, billions of times better that most materials. The details of the theory of electric conductivity were not understood until the discover of quantum mechanics and the properties of electron energy bands, but that goes beyond the essentials of this answer.
The emmiter current of an n-p-n transistor is equal to?
The sum of (base current) plus (collector current).
What kind of response is given by laplace transform analysis?
The type of response given by Laplace transform analysis is the frequency response.
What characteristics does an abnormal impedance phlebography have?
If a clot is present, the pressure in the calf veins will already be high. It does not become sharply higher when the pressure cuff is tightened. When the pressure cuff is deflated, the clot blocks the flow of blood out of the calf vein.
The purpose of this circuit is to hold the analogue value steady for a short time while the converter or other following system performs some operation that takes a little time.
What is the powder transfer theorem?
In electrical engineering, the maximum power (transfer) theorem states that, to obtain maximum external power from a source with a finite internal resistance, the resistance of the load must be made the same as that of the source. It is claimed that Moritz von Jacobi was first to discover the maximum power (transfer) theorem which is referred to as "Jacobi's law". The theorem applies to maximum power, and not maximum efficiency. If the resistance of the load is made larger than the resistance of the source, then efficiency is higher, since most of the power is generated in the load, but the overall power is lower since the total circuit resistance goes up. If the internal impedance is made larger than the load then most of the power ends up being dissipated in the source, and although the total power dissipated is higher, due to a lower circuit resistance, it turns out that the amount dissipated in the load is reduced.
What is the exact definition of differential phase shift keying?
differential phase-shift keying (′dif·ə′ren·chÉ™l ′fÄz ′shift ′kē·iÅ‹) (communications) Form of phase-shift keying in which the reference phase for a given keying interval is the phase of the signal during the preceding keying interval. Also known as differentially coherent phase-shift keying.
Above retrieved from Answers.com
Viper1
How can one establish Richardson - Dushmann equation?
http://www.lepp.cornell.edu/~ib38/uspas05/set3.pdf
How do you find amperes when using a resistor?
if you want to find the current (in amperes) through the resistor then connect a ammeter in series with the resistor.
Why people are using Hexadecimal rather than binary numbers while doing programs?
hexadecimal can express 16 bit binary in 4 place form, not 16.