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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
What is the function of a signal conditioner?
A signal conditioner is a device to convert a signal that may be difficult to read by conventional instrumentation into a more easily read format .
What is maximum output voltage of a transformer?
The secondary voltage (output voltage) of a transformer depends on the turns ratio of the transformer, and is limited by the practical insulation levels of the secondary winding, so can be very high indeed. Power transformers used in electricity transmission systems have secondary voltages in the range of hundreds of kilovolts.
What benefit is there for getting higher open circuit voltage?
There is no particular benefit for having a higher open-circuit (or 'no-load') voltage. In fact, an ideal voltage source would have no internal resistance and, therefore, its open-circuit voltage would be identical to its closed-circuit voltage.
Which is faster an analog computer or a digital computer?
built with the same level of technology, analog computers are always faster but less accurate than digital computers. however as little significant work on analog computers has been done since the 1980s, they currently significantly lag behind digital computers in speed.
Why does voltage change across components but not current?
we know,
v=IR
resistor, capacitor, inductor and other electrical components have their own specific characteristics to drop voltage or to consume voltage at a fixed amount.
the supplied voltage produces a current that changes with the change of the voltage. It doesn't changes simultaneously. so the voltage change across the components. but the current doesn't changes across component...
AnswerThink of a circuit with several loads as being rather like a number of central heating radiators connected in the same way. The same water (current) flows through each radiator. In order for that water to flow, we need a pump to supply pressure (supply voltage) across all the radiators. At the same time, there must also be a pressure difference (voltage drop) across each individual radiator or the water wouldn't flow through it. The sum of these individual pressures must add up to equal the pressure supplied by the pump.
So the same current flows through individual loads, driven by the supply voltage applied across the entire circuit. At the same time, there must also be voltages across individual loads (called 'voltage drops'), or current wouldn't be flowing through them. The sum of the individual voltage drops will equal the supply voltage.
Why does your Fridge thermostat have a resistor across the terminals?
It doesn't. It has an arc suppressor across them.
Where you use diodes in domestic?
as diode allows current to flow only in one direction . it is highly used in the conversion ac to dc power supply as in chargers, voltage converters... also used in circuit isolation, as it does not work in reverse biased mode.
Can I use 4026ic insted of 4033ic in same circuit?
It depends on the circuit design, and on the intended use. The 4033 is the same as the 4026, except that it has a ripple blank feature that allows leading zero blanking, while the 4026 has a similar (but subtly different) display blanking feature.
What are the disadvantages of half wave recrifier?
A half wave rectifier does not make a stable voltage. A single phase half wave creates a "bumpy road" where voltage modulates between sine wave maximum and zero. A three phase half wave will create a more stable, but ultimately "unclean", voltage.
What is the directional properties of antenna?
omni-directional is the opposite of directional. A directional antenna receives or sends more signal from or to the front than the sides or back.
What voltage would be needed to provide a current of 1A through a 9 ohm resistor and how many volts?
Use Ohm's Law.
Volts = Amps x Ohms
The math is easy in this case and I am sure you can do it.
Why laminations are used for iron parts of a dc machine?
Laminations minimize eddy currents, or current flow across the iron parts. This is one method to minimze stray losses.
What are the advantages of SONET over PDH?
•Plesiochronous Digital Hierarchy (PDH) is the original standard for telephone network, now abandoned in favor of SONET/SDH • Exploits Time Division Multiplexing
• Designed to support digital voice channels at 64kb/s
•No store and forward: imposes strict synchronization between TX and RX. A "plesio-synchronous" (almost synchronous) solution is adopted
• Different standards in US/Europe/Japan
SONET:
•Synchronous optical networking is a method for communicating digital information using lasers or light emitting diodes (LEDs) over optical fiber.
•SONET was introduced to handle large amount of telephone calls and interoperability between equipments of different vendors.
•Synchronous networking differs from PDH in that exact rates that are used to transport the data are highly synchronized across the entire network, made possible by atomic clocks.
Can you use a transformer to convert modified sine wave to pure sine wave?
we cannot use transformer because transformer cannot change frequency . . .
Can fet be used as a transisitors?
No. The Field Effect Transistor is a different technology than the Bipolar Junction Transistor. That cannot substitute for one another.
How does your xbox controller know when to vibrate and how hard to vibrate?
The game will tell the controller to vibrate at whatever speed and time.
Here is a simple code which makes a Xbox 360 controller vibrate:
Gamepad.SetVibration (PlayerIndex.One, 1.0f, 1.0f);
Here is what each part means.
Gamepad = Is the controller
SetVibration = Says what it will do, vibrate
PlayerIndex.One = I am not sure about this but I think its the vibration ID game
1.0f, 1.0f = This is each side of the motors (vibrators). This will says go at a rate of 1.0f each side. 1.0 is the max number for the vibrators. If you want a lower rate, you will change it to 0.5f or something.
So, if the code was inputted where you get shot on Call of Duty, it will vibrate at that rate. Change the rating will only give the motor/vibrators little nudge.
Hope thats a bit more technical for you.
