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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 are aircraft landing lights connected to a truck?

I dont know but darn it, I am going to give it a try. A friend of mine did exactly that. Many smaller aircraft use regular automotive lamps, so I presume you mean REALLY BIG 28V landing lights. A second or larger 28V alternator and 28V battery is needed. Then you need a relay to turn the things on, since the switches you have won't do the job. When all this is hooked up...Boom! it's daylight. Oh yes, put a basket on the side of your truck for the tickets you will get. When my friend did this he finally got a letter from his draft board classifying him unfit for service in 1964, since he had dozens of tickets.

What is debouncing?

Debouncing is a provision in electronic/electrical devices having switches to prevent the spikes in output.

Details: When we press any switch manually and release it it bounces due to inherent elasticity, this causes multiple make and break of electrical contact. If the response time is very large then it won't create any problem, but if it is small then we get multiple responses for a single keypress.

What is a 2 channel amplifier?

A 2 channel aplifier is an amplifier that can operate two channels. It is basically two 1-channel amplifiers in a single box. This unit is usually intended for operating a left speaker and a right speaker.

A channel is the signal/power combination intended for one specific speaker. A 'Stereo' audio system typically has a left channel and a right channel. More advanced audio systems may have separate channels for different types of speakers (midrange, woofer, tweeter, very commonly subwoofer, sometimes supertweeter) or for rear channels (surround.) This sort of setup was modern during the early 90s.

A bridged 2 channel amplifier is constructed in such a way that the amplifiers can be set up to operate inline providing the effect of a more powerful one-channel amplifier. If durability is a concern, a bridgeable two channel amplifier used for two channels tends to work well because it's likely to have higher quality or just more diodes so as not to be destroyed too quickly during bridged operation. Using a more powerful amplifier with the gain turned down is also a good idea if longevity is a concern.

What causes a ghost image on a printout?

it is bcoz of there is a problem with the developing drum

What charger do you need for a 24 volt battery?

The formula you are looking for is I = W/E. Amps = Watts/Volts. 300/24 = 12.5 amps. A good charger with an output of 15 amps will do the job nicely. The time that it will take to charge the battery will depend on the amp/hrs of the connected battery and the state of discharge that the battery is in when charging starts.

What can increase the voltage difference between a metal electrode and a solution?

If electrons are left behind in metal this will increase the voltage difference between a metal electrode and a solution. Also if the solution becomes more positive this will cause an increase.

What do today's computers use for vacuum tubes?

Billions of microscopic transistors integrated onto individual chips of Silicon. And one computer may have a few hundred of these chips doing different things.

Vacuum tube computers, even the largest, rarely had more than 10,000 tubes.

Is the banded end of a diode positive or negative?

The Banded end of diode represents Cathode.
If you want the diode to be forward biased then the Cathode is made more negative than Anode.
For reverse biasing of Diode (Zener Diode) The Cathode is kept positive.
However the mail carrier of current in the Cathode is Electrons which are negative.

How do you interface two seven segment led display through 8255 using 8085?

I have made a project which interfaces seven segment waiting display with 8086 and 8255. If there is anyone in need of this project I can help. Write me on this page and I will write the detailed explanations.

How many ohms is a computer speaker?

There is no single standard. Many computer speakers are rated at 8 ohms while others are 16 ohms or higher. My computer subwoofer here is 4 ohms.

What did Bernhard Fritsch have to do with iTunes technology?

Yes he created the first platform for Digital music rights management with a big amount of patents in digital music distribution.

What is the purpose Sheath Voltage Limiter in high voltage Under groung cabling?

A sheath voltage limiter is an arrester that is used to clamp the voltage induced on the sheath of an underground high or medium voltage cable during a fault on the system. It is common practice when applying underground cable to only ground the cable sheath at one end of the cable, and leave the other end open. Leaving one ungrounded reduces circulating currents and losses during steady state operations. IEEE standard 575-1988 indicates that typically distribution arresters can be used for this function. IEC Application guide 60099-5 soon to be published offers a formula to use to determine the voltage rating of the arrester, but does not offer any guidance regarding the energy handling rating.

How capacitor is used to check freshness of fish?

Between the two plates of a capacitor lies a medium with a specific dielectric constant. Placing a fish between these plates changes to dielectric constant. If the fish is fresh it will be strong and tight, thus possessing a higher dielectric constant. If the fish is older, it's dielectric constant, or body, will be weaker due to decay.

What does channel-agnostic mean?

Probably it is computer or electronics talk for channel independent.

06/20/2013: Channel-agnostic - refers to retailers who are indifferent to which method you choose to shop or make returns. If you buy online can return in-store, vice versa.

What is the unit and abbreviation of current and resistance?

The unit of Current is Ampere. Abbreviation of Current is 'I' and that of Ampere is 'A'.

The unit of Resistance is ohm. Abbreviation of Resistance is 'R' and that of ohm is the symbol of 'omega' or the symbol of 'ohm'.

What does 14.65 ohms equal on the 20k setting. I got no reading on the lower settings?

The reading of 14.65 on the 20k setting means 14.65K Ohms, and you probably need to go back and re-read the instructions for the meter. If, for instance, you used a 2M scale, if you had one, you would get 0.014, but the result would not be very accurate, as you need to pick a range that is close to maximum reading for that range.

It is normal procedure to start with a high range and come down in range as you approach an on scale reading.

What are radar conspicuous?

On navigation charts, you may find a feature marked on the chart as 'Radar conspicuous'. This means that the feature will show up clearly on radar and be identified as that part on the chart.
This not so obvious as it sounds. Land shows up on ship's radars, but due to reflections, absorption of radar signals and refraction, it can not always be certain to positively identify a coastline by it's shape.
Having something that stands out, because of it's shape and radar reflection, is useful for navigation purposes.

What are typical values of input impedance and outoput impedance of ce amplifiers?

Output of the power amplifier is smaller 0.1 ohms and input of the loudspeaker is more than 4 ohms.