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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

If three 6 volt batteries are connected in series the overall voltage in circuit is?

Regardless of the number and value of the resistors, total voltage drop in a series circuit will equal the voltage rise, or the applied voltage. Apply 6 volts to three series resistors and the sum of the voltage drops will be 6 volts. No mystery here. Think it through and it will lock in. To get you ready for more "advanced" analysis, Kirchhoff said the algebraic sum of the voltages in any closed loop is zero. Going all the way around a series circuit, we'd encounter the battery, and all the series resistors. The battery is a voltage rise, and the resistors are voltage drops. The polarity of a voltage rise is opposite that of a voltage drop. This means that when they are added algebraically, if they are equal, they will sum to zero. Work this with a battery connected across a single resistor to get a handle on it. You'll need the ideas to manage calculations in loops of parallel circuits. Remember that in any closed loop, the algebraic sum of the voltages is zero.

Who invented the copy machine?

Chester Floyd Carlson developed the process called xerography, working for a time with a hired assistant, Carl Miller.

The copy machine was not invented, it was developed using the xerographic technology as its core principle. The team that developed the first plain paper photocopier were the engineers of The Haloid Corporation and its President, Joseph C. Wilson.

How do you Stop automobile AM Radio ignition interference?

As a minimum, the engine hood needs to be electrically bonded to the car body. This is usually done with a short length of flexible copper braid that clips to the sheet metal of the hood and the sheet metal of the car body. Additionally, the 12VDC power supply to the radio should incorporate an electrical filter to prevent electrical noise from entering the radio via its power connection. Third, the antenna cable from the radio to the antenna needs to be shielded and the shield must be in good condition, with no breaks from the radio chassis to the point where it connects to the external antenna.

Although electrical generators have been largely supplanted by alternators, old cars that still use generators need to have filter capacitors added at the generator output to trap high-frequency brush arcing noise. Also, the breaker points in old car ignition systems are frequently the source of electrical popping noises in radios, and that can be reduced with the capacitor that is normally bridged across the points. If an alternator produces a whining noise in the radio, it often indicates one or more failed rectifier diodes in the alternator. In that case the diodes should be replaced, or if the rectifier diodes are build into the alternator, the alternator should be repaired or replaced.

Better radios will incorporate additional electrical filtering and voltage regulation of their power supply internally, and will use circuit designs that minimize sensitivity to power supply noise.

Who invented cable internet?

No one did it was just improved many times and was called high speed.

Does being an astronaut require certain math skills?

Imagine you're on a spaceship in orbit around the moon. You have a fuel leak and are running out of power. When do you fire the ship's thrusters, and for how long and in what direction, in order to be able to return to Earth safely? Obviously, this is not a question that astronauts usually face (except maybe on Apollo 13) but hopefully it illustrates the way in which math (in this case, calculus, algebra, etc.) and science (in this case, the physics of orbits), which has math at its heart, relates to everything that goes on in a space flight mission. All the science and engineering that goes into designing, building and flying spacecraft is based on math - without math, there would be no way to predict beforehand how the spacecraft would react to different conditions and how it would move in its orbit. I imagine that astronauts probably don't directly use much more than simple math when on a flight - important calculations are done by computers - but to have some idea of what a spacecraft is doing and how it is operating, without placing complete blind faith in the people who built it, requires a knowledge of math. Also, in addition to flying and maneuvering a spacecraft, astronauts are often involved in conducting scientific experements aboard the spacecraft, which would involve math in other ways too.

What are the positive effects of tourism in society?

Tourism can cause the people of a nation to have pride in their history and attractions. On the other hand, it can cheapen the experience of living in a great city.

How do you draw logic gates?

Depends on the types of logic gates you're drawing. They have different symbols. You should be able to search the web for a list of symbols for the various gate topology. Using smartdraw tool, you can drag and drop such ready made shapes.

Corel draw graphic suite is another such tool.

What year was the blimp invented?

Though the blimp had been an idea for decades, in 7/1900 it carried passengers for the initial time.

How does an ink jet printer work?

there is a print head has nozzles to draw ink from cartridge and spray on the paper cartridge is placed on the print head holes are placed exactly on the nozzles.

There are various technologies involved, depending on the make.

The ink is supplied at the nozzle by internal pressure from within the cartridge, or by gravity.

The ink is fired onto the paper by an electrical pulse. This impetus is provided either by rapidly heating the ink drop, or by piezo crystal resonator.

As the print head moves back and forth across the paper, the picture is printed line by line.

How fast do light waves travel?

Light in a vacuum is represented by a constant known as c=2.99792458 m/s. Otherwise I can recommend two books called general relativity and special relativity both written by our very own Albert Einstein.

What causes static in speakers the speakers are fine but the tweeters put out static?

Static coming from some but not all speakers is usually caused by a loose connection at that speaker or a loose speaker itself. It can also be cause by a wire with insulation worn off, and touching a body part.

Static coming from some but not all speakers is usually caused by a loose connection at that speaker or a loose speaker itself. It can also be cause by a wire with insulation worn off, and touching a body part.

What level does Grotle evolve on Pearl?

Turtwig is my fav. sinnoh starter. Grotles ok. By the way turtwig evolves into grotle at lv. 18. But its nothing compared to torterra. Check it. You only have to wait to lv. 32.

(Evolves at level 32)

Hope this helped!,

Licky Licky

When is the next jirachi event in 2011?

They might not have one, it is to soon to say... they might have on over Wi-Fi in 2011 you never know... go to bulbapedia they have Pokemon news about a month before. Hope this helps!

Bri Bulls

What is 240v?

the voltage of the mains electricity in the UK

What fruit produces the most electricity?

Fruits and vegetables as such does not actually produce electricity.

They do however poduce various acids.

These acids can and will together with various metals make it possible to shift electrons from one metal to another.

Metals can not be the same. Metals like Copper, Silver and Zinc work very well. Preferably Copper and Zinc, or Silver and Zinc. Copper and Silver works too, but produces lower voltage.

It is the electrons flowing from one metal to another via the acid that makes the electricity.

Note:

many factors determine the actual voltage and the current possible to drain from your home-made battery.

The current is dependent on the contact surface of your chosen metals. Very large surface can make a large current. Small surface makes a small curent.

The voltage is dependent on how many fruit 'batteries' you connect in series. you may get between 0.2 and 2 volt per fruit, depending on metal and how acidic the fruit is. Citrus fruits like lemon is very suitable.

Warning:

Do not eat the fruit afterwards as they will contain a dissolved solution of metals. That may be harmfull.

What is the mass of a CD player in grams?

The Samsung SH-D162D/BEBE which will play CD's and DVD's weighs 750 grams. This is for mounting in a computer chassis. A standalone unit will weigh at least double that.

What forms of electricity are there?

The two forms of electricity are Alternating Current (AC) and Direct Current (DC).

Will horrid Henry ever get a girl friend?

yes horrid henry does have a

girlfreind called Rose and they have kissed befor.

Even though horrid henry dosent like girls he likes Rose.Rose loves horrid henry

espculy when hes nice to her.

If you ever wtched the movie he gets a girlfriend.

bye bye.

What is wrong with your home AC that has freon but is not blowing cold air?

Check the AC fuses. There's usually two sets. One at the electrical box and another set at the compressor in a wall mounted box. There may be two of them and one of them blew out. The other possibility is that the compressor/fan motor start capacitor is bad. Sounds like the furnace fan is running but the compressor isn't.

Other item to check is to make sure that you have the thermostat actually set on AC. A lot of times people will flip the switch thinking they're turning the AC on only to find out they just turned on the fan switch.

How can a microwave oven hurt you?

Sadly yes, a microwaved egg works as timed bomb, after certain processes happen inside the egg it explodes, often after being removed from the microwave. There has been eye operations following pieces of egg hurting eyes. Metal in the microwave can cause fire, so better be careful.

A2

Microwaves, even in small doses, can affect living skin cells.

You must check that the door seals are intact and do not leak microwaves out. You can buy microwave detectors to check for your self or take it into a repair shop for servicing.

Make sure that the interlocks work, the oven should not work with the door open.

Do not stand close to the door at face level when it is cooking. Microwaves leaking from the door can cause cataracts of the eyes.

Equation for voltage in a parallel circuit?

You can measure across *any* component - see the answer on measuring voltage.

For any resistance measurement, be SURE that:

1. The circuit is disconnected from the power supply, and

2. "Energy storage" components such as capacitors are discharged.

If the circuit does contain capacitors of reasonable size (microfarads or more) these may demand some power from the meter to charge them, so you can get an artificially low reading at first, but it will rise to the correct value as the capacitors charge.

What makes a machine a robot?

A robot is designed to automatically or remotely manipulate an object or objects by mimicking a human movement. The robot is either built to be stronger, less susceptible to damage, steadier, or built to withstand tedious repetition.

In simple terms a machine has moving parts that redirects energy like a car or pinball game. A robot is a specific type of machine designed to manipulate its environment on its own. Machines should not be confused with electronics like computers which have no moving parts but in common usage are considered machines because electronics often have internal machinery and vice versa.

What is a car battery made of?

It is made of a plastic case, in which there are 6 compartments, inside each there are several plates made of a frame covered with a lead-based paste. These sit in an acid bath, which works with the plates to make a chemical reaction which makes the battery volts.

Can aipom evolve?

Yes it can. However, it will only evolve when you teach it the move double hit. Then it will elvove into ampipom, which has two fists for tails, i.e. DOUBLE HIT..