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Consumer Electronics
Ask questions here about the electronics you use every day: from phones and computers to kitchen appliances and radios.
4,952 Questions
Can you buy replacement parts for aurora paper shredder?
Apparently not!! The company offers NO support, and basically says buy a new unit! However what use is a simply manufactured shredder that keeps stripping drive wheels (both plastic and metal) all over the world that no replacement parts are available. I WILL NEVER BUY ANOTHER AURORA PRODUCT!!
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What is the voltage of 4 AAA batteries?
The output voltage depends on how they're connected;
In parallel, the voltage supplied will be 1.5 V.
In series, the voltage supplied will be 6 V.
How much email does the average person send on a daily basis?
The amount of email the average person sends depends on a lot of various factors. If they use email for business, if they use email to keep in touch with family, how many friends they have who also use email, etc. For many people, the number is between 3 and 7.
How do you check for a radiation leak in a microwave?
The only way to check for microwave leaks is to check it with an radiofrequency radiation (RFR) probe, which are very expensive and require technical training to operate.
Unless the microwave, and especially the door, have noticeable damage you can be very confident that exposure is very negligible and that no adverse health effects will come of it. As an added precaution, it is smart to stay several feet away from the microwave while it is cooking, since radiation levels drop sharply with increased distance.
You can buy a leakage detector for $40. Please note that these detectors are not certified by any government regulatory agency and therefore the manufacturer can make any claims they want - similar to the claims seen on "supplements" sold at the drug store.
How do you remove the factory stereo deck for a 1997 ford explorer?
You'll need a pair of tools to remove this radio, available @ your local car parts store. They're u-shaped and about 3-4 inches long. There inserted in the two holes on either side of the radio. Either pull them together or spred them slightly while pulling the radio towards you. This will release the spring clips on the sides of the radio.
The microprocessor that implements the computer architecture is typically a chip of silicon about a half inch square. However to make the complete computer one needs additional volume for power supplies, memory, input/output, etc.
What is logic family in digital electronics?
Transistor Transistor Logic. Main feature is cheap and old technology. Drawbacks it has limited speed and fan IN-OUT.
What are the four macro skills and at least five micro skills in each macro skill?
4 macro skills
-reading
-writing
-listening
-speaking
micro skills in reading
-outlining
-summarizing
-guessing
-inferencing
-taking notes
-predicting
-confirming
Volt-amperes (VA) are used as a measurement of "apparent power" delivered to a load, calculated as the RMS voltage times the average current measured at the input to the device. Wattage is used to express true power dissipation in an AC circuit, calculated by integrating the product of current through the load and voltage over time. These may sound like they would be the same, but the characteristics of AC circuits can be such that some of the current flowing into the circuit is stored and then discharged back into the power line, without actually flowing through the circuit.
An AC circuit has a characteristic called the power factor (PF) that determines the relationship between true and apparent power; i.e., the conversion between volt-amperes and wattage. It varies from 0.0 to 1.0, but proper designs should have a PF close to 1.0, so frequently there is little difference between watts and VA. The wattage will always be lower than or equal to the volt-amperes. In the case of devices with significantly low power factors (such as fan motors, which may be around 0.65 when running and as low as 0.1 when first turned on), the wattage may be significantly lower than the volt-amperes, which can be a concern when using watt ratings: One might expect a 960-watt device to draw 8 amps at 120V, but if it has a PF of 0.65 it would actually draw 12.3 amps. This could be a problem if it is plugged into an outlet on a 10-amp breaker!
Who invented radio communication?
Dr. Mahlom Loomis invented the first radio. He was a dentist in Washington D.C. In 1865 he sent 18 kites miles away from each other on the West Vriginia mountain. He recived connection. He did this so that when he was not home he could still here the news. Congress awared him $50,000 research grant. Dr. Mahlom Loomis invented the first radio. He was a dentist in Washington D.C. In 1865 he sent 18 kites miles away from each other on the West Vriginia mountain. He recived connection. He did this so that when he was not home he could still here the news. Congress awared him $50,000 research grant. Dr. Mahlom Loomis invented the first radio. He was a dentist in Washington D.C. In 1865 he sent 18 kites miles away from each other on the West Vriginia mountain. He recived connection. He did this so that when he was not home he could still here the news. Congress awared him $50,000 research grant. Dr. Mahlom Loomis invented the first radio. He was a dentist in Washington D.C. In 1865 he sent 18 kites miles away from each other on the West Vriginia mountain. He recived connection. He did this so that when he was not home he could still here the news. Congress awared him $50,000 research grant.
How do you swipe a hard drive?
Assuming by wipe out you mean make the data permanently inaccessible, you can:
- electromagnetically degauss the drive, but this should be repeated several times in different orientations to make sure it isn't recoverable using special forensic recovery equipment that can detect the magnetic shadows of the data
- disassemble the drive and shatter the recording platters in tiny pieces wit a hammer
- or probably the best is disassemble the drive and meltthe recording platters! (if you can't get them hot enough to melt, red heat is adequate as this is above the Curie Point at which all magnetism is lost)
Assuming by wipe out you only mean you want the old data effectively unrecoverable but you wish to reuse the hard drive:
- The US DOD requires that hard drives be erased a minimum of 7 times by zeroing the entire disk then overwriting the entire disk with pseudorandom data to completely scramble any magnetic shadows of the data before the disk is reformatted.
- MACOS X provides both the 7 times to meet the DOD requirement and a 35 times for the really paranoid (or those that just have plenty of time to wait when formatting)
What is the advantages of electronics?
Advantages of Analogue
-Uses less bandwidth
-More accurate
Advantages of Digital
-Less expensive
-More reliable
-Easy to manipulate
-Flexible
-Compatibility with other digital systems
-Only digitised information can be transported through a noisy channel without degradation
-Integrated networks
Why would cylinder 2 3 not fire on a 1992 ford ranger 2.3l 4 cylinder?
Hi,
Offhand, I can think of a couple of possibilities immediately. The first would be a collapsed hydraulic lifter, preventing a valve from opening. Maybe a bent push rod (between the lifter and rocker arm).
If it's a lack of spark, it could be the ignition coil. Chances are that you have one coil for every two cylinders, or the control for the coil not delivering the proper pulse.
The spark plug wires are usually made with a carbon conductor and possibly one or both leads have breaks in them, but that'll usually just cause a weak spark or even the wires could be reversed and firing when they shouldn't.
That's, `off hand`.
Hope it helps,
Cubby
Error rates are a possible candidate for most important disadvantage, though to varying degrees depending upon the specific authentication method. Higher sensitivity authentication methods increase the likelihood of false rejection, whereas lower sensitivities increase the likelihood of false acceptance.
The error rate of any given biometric authentication device can be broken down into the following categories:
- False Acceptance Rate - FAR
- False Rejection Rate - FRR
- Failure To Enrol Rate - FTE/FER
Being erroneously denied access to your banking information might be preferable to erroneously allowing someone else access, but neither scenario is desirable. Few systems with less than a 1% error rate are currently in existence.
Providing multiple/backup authentication methods increases the likelihood of an exploit or vulnerability, compromising security by trading FER for FAR/FRR.
In short, False Negatives and False Positives are the most important disadvantages.
How many square feet does an 15000 BTU air conditioner cool?
I currently have a 5k btu air conditioner and I've found that it'll do well to cool a single room, providing the doors are closed most of the time. To expect much more from it as far as cooling wouldn't be realistic.
One of the purposes of an air conditioner besides cooling, is to also remove humidity, and if you use it in a larger area, it'll help some, but you can't really expect a lot of cooling from the unit. It'll also run the compressor continually and the electric bill will probably be quite a bit higher.
How do you beat the gap of rohan in Lord of the Rings 2?
You first kill all the nubered orks then go up the hill and when the elphants close shoot the crossbow missle and keep hiting it till it dies. Then when its on the other side keep doing the same thing until you face the nazgul and ring wrath use legolas and shoot it with arrows until it dies but try to kill the orks that are charging at you while your firing at the nazgul then the dead will finish it for you then your done that's it
What are the relationship between Diode voltage and temperature?
The equation relating diode voltage and current is: Id = Is*(exp(Vd / n*Vt) - 1) Where: Id = Diode current Is = Saturation current exp() = exponential function (e^) n = Ideality factor Vt = Thermal voltage The relationship between temperature and diode voltage comes from this Vt, the Thermal voltage, which is defined as: Vt = k*T / q Where k = Boltzmann constant (8.617 * 10^−5 eV/K) T = Temperature in Kelvin q = Elemental charge (1.602 * 10^−19 C) Thus, the temperature affects the thermal voltage (an electrostatic voltage across the PN junction), which affects the diode's Id and Vd properties.
How intercom system works in general?
humans hear sounds beetwen 300herz-3.4kherz ;at this system we need to send a signal to the first spkear this signal passing the amplifier and then come to the spekar which is at the out of the circuit ;but coupling capasitör and resistörs and transistörs are important for good sound
Which one weighs more a charged or a depleted battery?
Battery mass is not designed to deplete over time. However, some older and serviceable water filled lead batteries did require periodic fill. In these batteries the loss of water would affect mass. Modern and sealed batteries should and will not change in weight.
How do you put pictures from your computer on your zune?
1) Insert the CD that comes with your zune.
2) When prompted, connect your zune through the USB cable.
3) New firmware will be installed on the zune.
4) Open the program called 'Zune' on your computer.
5) If your music is not in the default My Music folder, click Options > Add Folder To Library > Add Folder. Browse to select your folder, then click OK.
5) Click the circle made out of two arrows, this is your sync button.
6) A new tab with appear on the right side of the program, click Start Sync at the bottom.
7) Wait until you see Sync Complete, disconnect your zune and enjoy.
carbon copy
Before copy machines were common, if you wanted several copies of a letter or memo, you would put several sheets of paper into the typewriter with carbon paper between the sheets. Then, after typing the item once, you had the original plus several carbon copies. Today, it is used to indicate a person or people to whom a memo or e-mail is being sent but to whom it is not addressed.
Disadvantages for shopping on Internet?
E commerce stands mainly for Electronic commerce.It is refereed to be the buying and selling of product or service over electronic systems such as the Internet and other computer networks.It draws on such technologies as mobile commerce,electronic funds transfer internet marketing etc. Every aspects serves its advantaged and disadvantages. Similarly eCommerce has its disadvantages of its own. They include:
1. Any one, good or bad, can easily start a business.And there are many bad sites which eat up customer's money.
2. There is no guarantee of product quality.
3.There are many hackers who look for opportunities, and thus an eCommerce site, service, payment gateways, all are always prone to attack.
4. Mechanical failures can cause unpredictable effects on the total processes.
Yes, a flip phone can typically take pictures. However, it totally depends on the manufacturer and brand of the flip phone.
