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Electronics Engineering
Electronics Engineering is a branch of engineering that deals with practical applications of electronic components, devices, systems, or equipment. Electronics are devices that operate on low voltage sources, as in electron tubes, transistors, integrated circuits, and printed circuit boards and use electricity as part of its driving force.
24,372 Questions
How do you change your greeting message on your Samsung Gravity T?
Click on home, then push settings. After that push display settings scroll down and find greeting message. I hope that works!
PBX stands for Private Branch Exchange. The system is used in interconnecting telephone lines and extensions within a company or office. The system then link this network the PSTN.
Akai TV Model No CT-2985 Block Diogram?
block diogram
akai ctv mico system ic defective pl.send circuid daigram
goutamcal@rediffmail.com send ic 47c123n-ub14
What is carrier telephony and what are the features of carrier telephone system?
Carriers are the companies that construct and maintain the networks that provide telephone services.
Carrier telephony is a method of transmitting several telephone channels over a single pair of wires. It was used extensively throughout the world in the 1940s through 1980s prior to the introduction of digital transmission systems. Carrier telephony systems ranged from single channel systems that transmitted one carrier channel on top of a normal voice frequency channel to co-axial cable systems that had thousands of channels. It was mostly used to provide trunk lines between cities although subscriber carrier systems did exist.
V=voltage at 4amperes, 12.2V I=Ampere, 4A V V= E-Ir r=(E-V)/I r=(12.6-12.2)/4 r=0.1 ohm
A giga-flop stands for a billion FLOATING POINT instructions per second. It signifies nothing about the number of Integer or memory load/store/jump operations. It is primarily used in the Scientific Computing field, which mostly run large-scale simulations, which are (almost) exclusively floating point calculations.
What device is used to change the scale values of an AC ammeter?
A multimeter is used in which there is options for multirange measurement of Ac current or voltages and resistances and also DC voltages
wind energy can be transformed into mechanical energy by wind mills .
What value resistor is needed to change 8 volts dc to 5 volts dc in a 10ma circuit?
Using the formula,V=U-IR,where V is the voltage after drop,U is the voltage at the supply,iI is the current and R is they resistance.
V=5,U=8,I=0.01,R= ?
5=8-0.01R
8-5=0.01R
R=3/0.01
R=300ohms
Difference between positive edge trigger and negative edge trigger for flipflop?
A: it does not apply to only flip-flop but to all kinds of logic circuits where a [+] transition from a less negative to a more positive level occurs [-] and the other way around meaning a +/- transition must occurs to transfer states.
When the conductor,magnetic field and motion are perpendicular to each other
What is Laser in-situ keratomileusis?
Laser in-situ keratomileusis (LASIK) is a non-reversible refractive procedure performed by ophthalmologists to correct myopia, hyperopia, or astigmatism.
Why you are using capacitive hat in short antennas?
Capacitive hats are used to alter the distribution of the current on a short antenna so that the antenna current is not concentrated near the ground. A whip or short antenna can be modeled as a series of LC circuits in which the capacitance per unit length is highest near the base and the inductance per unit length is highest near the top. A capacitive hat simply adds capacitance to the antenna. It basically makes the antenna seem longer, but maximum current is still at the base.
The reason why you'd want to make your short antenna longer, is to obtain the antenna's resonance frequency. The length required to do this is a quarter or a half of the wavelength of the radio wave that it's receiving. At resonance, the electrical resistance of the antenna drastically drops, which effectively increases the Q factor, or quality factor, of the resultant output signal. The term Q factor is simply a measurement of how good the clarity and stability of the output signal is, the higher the better when dealing with radios and televisions.
Of course, instead of using a capacitive hat on your antenna, you could always physically lengthen the antenna itself. However, considering that commonly-used radio waves can be up to 10 m (33 ft) long, your antenna would have to be about 8 feet long, which would make using your radio a bit awkward.
xilinx provides electronic design and automation (EDA) tools like ise web pack, cool runner etc. These tools are useful for electronic engineers for simulating their designs. Synthesis, timing analysis, place and route can be performed using these tools.
What is the difference between a 47uf 50 v capacitor and a 47uf 25v capacitor for a tattoo machine?
A: It may tattoo your face when it blow up if the 25 volts is used where a 50 volts should be, you may substitute 47 mfd 500 volts for the 50volts cap and the 25 volts cap But you cannot substitute 15 volts for the 25 volts capacitor
What is the purpose of the zero ohms adjust?
To adjust for the changing (dropping) voltage of the internal battery, so you can still get accurate readings. When you can no longer adjust to zero, replace the battery(s).
Why need to increase the computer speed?
A faster computer can do more in less time.
However most computers cannot have their speed increased meaningfully without changing so much of the hardware that you actually have a different computer... and it would likely have been cheaper and easier to just buy a newer and much faster computer.
What plugs are more efficient 3 points or two points?
If you are referring to the types of 'plug' used with electrical outlets, then one is no more efficient than the other. They both do what they are designed to do: allow portable equipment to be connected to a residence's permanent electrical system. However, three-pin plugs provide greater safety because they provide an earth (ground) connection, which two-pin plugs don't.
Frequency modulation direct and indirect FM generation method?
I know the answer,but I just can reply it in Chinese.
Which type of wave has a longer wavelength FM radio or AM radio?
There's no connection between the wavelength of a radio wave and the way
it's been modulated to add information to it.
Speaking only about comercial broadcasting stations in the USA, AM stations
operate at longer wavelengths than FM stations do. But that's just the way
they happen to be assigned; it could just as well be the other way around.
What is the difference between Ohm and Ohm CT in impedance of an audio transformer?
The side of the transformer that has the ohm CT which translates into a winding on the transformer that has a center tap . This side of the transformer was likely attached directly to the audio output transistors set up in push pull configuration. This is what the center tap is for. This side of the transformer would have a higher impedance and is directly driven by the power supply to provide amplification The transformer also isolates the amplifier voltage from the other side which is of low impedance. This may be in the range of 8 to to 16 ohms which would be directly tied to a speaker.
