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Electricity and Magnetism

Parent Category: Physics
Electricity and magnetism are ultimately inextricably linked. Electricity is the term given to a group of physical phenomena involving electric charges, their motions, and their effects. Magnetism is the force generated by the passage of an electric current through matter.
you need 4 D's. I know that sounds like a Rip-off, but it totally keeps working for a long time.
Fluorescent materials are used in illumination, displaying, solid  state lasers,light communication,light memory and so on.
Depends. Whats the amperage rating on the bulb and the battery? Isthe 12 volt bulb LED? The equation to find your answer depends onhow much your 12 volt bulb is drawing and how much your batteryhas. I have seen 12 volt bulbs that are searchlights and I haveseen 12v bulbs that are little LED ones....
As long as the electricity is static, it is of little concern. Ofcourse, static today, current tomorrow. If you are in contact with a large static charge and also with theEarth, the energy can flow through you, and there might be enoughto stop your heart. I heard of a man who picked up two cables...
It depends on the size of the magnent
SCIENCe wavelengths . Yes, there are. If youre talking about electromagnetic radiation, they have the same speed 3*10 8 They vary in wavelength (greek letter lambda) and frequency to maintain this as speed of light= wavelength * frequency You'll find this in an Electromagnetic spectrum....
Half life has unit. That is unit of time. So it has to be  mentioned. Let us assume that half life is 1 year. Okay. Now to  know about the mass remaining we have to get the ratio  (1/2)^1620. Hence remaining will be 1/(2^1620) * mass at the  beginning
Frozen batteries last longer unfrozen batteries.
lithium batteries have a faster current discharge rate then  alkaline batteries but they cost more. The LIPO battery is used the  most in RC planes.
There is a little clip that holds it in. Look at the circle, at some point around it,you will see a small clip, you push it away from the battery and it will allow the battery to come out. Now, when you touch a motherboard, you are suppose to wear a anti static strap, and remove all power from...
On a John Deere 4010 diesel with the generator, NOT an alternator.  Put new batteries in and some how ended up with the left battery  negative ground and the right battery positive ground.    Ran for a day that way and then the next day the tractor wouldn't  start. Dead big time. No lights...
the regulator in your alternator must be in trouble remove the alternator and take it to an alternator repair shop or fit a new alternator
To remove your battery door insert your finger nails at the bottom and lift the door.then open the cover of the battery.you can do it easily.
Between visible light and X-rays you have Ultraviolet light.
Answer this question...use candles lanterns flashlights
Mutual inductance is where the magnetic field generated by a coil  of wire induces voltage in an adjacent coil of wire. A transformer  is a device constructed of two or more coils in close proximity to  each other, with the express purpose of creating a condition of  mutual inductance between...
Because the alternator will keep your car running as long as its runningType your answer here...
just need to 2 data connections, and only can transport to another.
you cannot make a magnet out of copppe unless you run a current through it
I have no video but electromagnetic wave may harm and may not   It is divided to seven the radio  waves,microwave,infrared,visible light,ultraviolet light,X-rays,and  lastly Gamma rays. The waves that is not harmful is from radio wave  to visible light then the rest may harm
It's due to static electricity build up. The balloons have become charged with electricity and it is the same charge on both balloons (either positive or negative). Opposite charges attract, identical charges repel each other.
Single use batteries tend to give 1.5V and rechargeable batteries  1.2V. In most cases you won't notice the difference but in some  devices it can cause problems. Single use or primary batteries,  such as alkaline and zinc are the most common type of battery but  increasingly seen as wasteful...
  1. Magnets attract objects of  iron, cobalt and nickel.   2. The force of attraction of a magnet is greater at its poles than  in the middle.   3. Like poles of two magnets repel each other.   4. Opposite poles of two magnets attracts each other.   5. If a bar magnet is suspended...
To protect it from water or other damage.
Energy of electromagnetic photon = h c / L   Here L is wavelength of radiation
v=fλ Visible light is an electromagnetic wave. All electromagnetic waves travel at 3.0x108 m s-1 in a vacuum. Since the question doesn't supply additional info I'm assuming the medium is a vacuum. Hence, v=3.0x108 m s-1 and λ=486x10-9 m. Therefore, f=v/λ = 6.17x1014 Hz
Yes,visible light is used. Frequencies of blue and red absorbed effectively
you see magnets are really boring and you who cares because  appartently you will be using this all the time in real life
Rainbows are an optical illusion, they are not "real". You cannot view them from above; they will always appear the way they appear from the ground.
AAA batteries measure one centimeter wide.
There are many laws stated related to the static electricity. One  such is Coulomb's law   Statement: The force between two charges is directly proportional  to the product of the magnitude of the charges and inversely  proportional to the square of the distance between them
Frequency of em radiation is inversely proportional to its wavelength.so, frequency increases with decrease in wavelength.
Using electric field charged particles could be streamlined and  this is known to be electrostatic focusing.
Electrical current flows along the surface of a metal, so no, it does not flow through the core of a wire, just the surface.
Rub it off Radioactive polonium brushes available in any photoshop will do this. The alpha particles emitted by the polonium ionize air and the ionized air carries off the static charge. These brushes should be bought new at least every year from a fresh batch at the photoshop due to the short...
The danger of radiation, specially ionizing radiation, is the  capacity to harm the genetic material. Ionizing radiation can break  double the strand of DNA and inactivate vital genes necessary for  living or health of the organism. Depending upon the intensity of  the radiation, the cell can...
NO. It produces four lines with wide difference in wavelengths. So  it is not a monochromatic just as sodium vapour lamp
Stationary charge don't produce a magnetic field. because it has no velocity in it, without flow of electron we can't find electricity and for that we have no magnetic field for a stationary charge. It produce only electric field.
a battery should be reading 12 or 13 volts at full charge you would need it over 10 volts but its hypothetical as it depends on the engine size10To add it's not the voltage that turns the starter motor it is the amount of what is called cranking amps or cold cranking amps cca which refers to the...
Dispersion phenomenon establishes that light of different colours  travel at different speed in a denser medium. Light traverses at  different speed in different media is confirmed by the refraction  phenomenon.
  As I remember, you don't. The batteries are built into the film pack. Try going to the Polaroid website for more instructions.
Electrostatic potential energy
This can be done by moving a magnet through a coil of wire. This is called electromagnetic induction and it results in a voltage being induced in the coil. The charges in the coil are set in motion...
elecron can move from atom to atom...yes
If standing on 0 latitude and longitude ( doesn't matter which  pole) the compass would go crazy
Lightening is just a discharge taking place between charged clouds  or in between a charged cloud and any charged region of the earth
There are different mains supply standards in different parts of the world. -- It's AC almost everywhere in the world, rather than DC. -- The frequency of the AC is either 50 Hz or 60 Hz everywhere. It's 60 Hz in all of North America. -- Mains voltages include 400, 240, 230, 220, 127, 120, 115,...
One variable that needs to be controlled is the number of coils of the electromagnet as the more coils the stronger the magnetic force, so the same number of coils should be used for each test.
Electricity involves charged particles. An electric current  involves the movement of charged particles.   These charged particles MAY be electrons, and often are; but it is  possible to have an electric current with many other types of  charged particles.
Static Electricity -- A condition that exists when electrons are displaced and remain so. Static electricity is usually the result of friction. Lightning is an example of static electricity. Static electricity makes your hair stand on end. If you take an inflated balloon and rub it on your head, it...
The actual act, meaning how bad the person was hurt. Then there is  intent, or weather the perpetrator was trying to hurt the victim.  If it is done with intent to kill or with a dangerous weapon it is  aggravated battery, and the sentence can be greater.
Static energy happens as a result of buildup of electrical charges  on the surface of the object. That shows it is a non-moving charge.  Current electrical energy is the flow of electrons along a  conductor. Static energy is uncontrolled unlike the current energy,  which can be controlled.
batteries run down because people use it to much
If a woman strikes back after being "put in her place"
Not all are, some are square
CMOS is a type of technology for constructing integrated circuits.  One advantage of this setup is less waste heat compared to NMOS  logic or transistor-transistor logic.
An atom is smaller than a single wavelength of visible light
The difference is the energy and the frequency, Energy = hf = hc/r.
It's electrical current. Measured in amps.
Electricity is made through electromagnetism or chemical reaction.   Many different investigators and 'tinkerers' discovered ways to  generate   electrical energy, whether static or current, as much as 500 years  ago.
In order from longest wavelength and lowest frequency to shortest wavelength and highest frequency, they are radio waves, microwaves, infrared rays, visible light, UV (ultraviolet) rays, X-rays, and gamma rays. Our Chemistry and Physics teacher taught us with a mnemonic device: Real Men In Violet...
Xerox copying technology, formation of lightening, tying a metallic  chain with petroleum tank being carried by a truck just to avoid  combustion of the fuel.
Jupiter does not produce light. It does, however,  reflect a lot of the sunlight that reaches it's surface. The  amount of light that a planet's surface reflects is call it's  albedo, and it's expressed as a value between 0 (nothing  reflected) to 1 (100% of light is reflected). Jupiter has an...
The resistance of a wire varies inversely to its cross-sectional area.
... in CE config.. as Vo=Vcc-Ic Rc nw as Vcc is const. v cn say Vo is directly proportional 2 (const.-Ic Rc) so nw when d base voltage is increased Ib will inc. thus, Ic will inc. cuz Ic=beta Ib thus Ic Rc drop increases... as Vo is prop 2 (const.-Ic Rc) thus, Vo will decrease for inc. in Ic...thus...
magnets are used in hoovers to start the engine/motor it has a rush of electricicty go through it and that pushhes against a spring to activate it! by a id!ot
it is becuase when a glas rod charged by rubbing a cloth it aquires  positive charge and when a plastic straw is charged by rubbing a  cloth it aquires negative charge. Therefore a charged glass rod  attracts a charged plastic rod.
What you are seeing is an absence of light. You distinguish a black objects presence by its lack relative to other things.
moving electrons, be it around iron atoms or through a wire.
Visible means "what you can see" - so yes.
It was invented by Alessandro Volta in the year of 1799.
The best ones are from Source Electronics (old Radio Shack) I just bought a pack of 30 for $17.95.
Buy Nikon D60 battery, and you will save 20%! Full one year warranty! Website: http://www.nikon-coolpix-replacement-battery.com/d60.htm
If pads are using AC, yes you can get some electromagnetic field because of it.
An electric current is created when a magnet is spun rapidly inside a coil of wire. A turbine (usually powered by water or wind) spins a magnet inside a coil. This action induces an electric current in the coil that can be used to power a light bulb. Hope This Helped!! :D
Michael Faraday, investigating further the earlier discovery of electromagnetism by Dr. Hans Christian Oersted (of Denmark).
There are different speeds involved.* An electrical signal travels  about 200,000 km/second in a wire - about 2/3 of the so-called  "speed of light".   * The drift velocity (average velocity) is typically less than a  millimeter per second.   * Individual electrons travel at a significant...
This can only happen if there is relative movement between a moving  object and the magnetic field. This will generate a voltage, which  in turn may generate a current (if the moving object is a  conductor).   The relationships between electricity and magnetism are explained  by the Theory of...
America doesn't use any disposable batteries per se. Americans however use too many to even estimate.
An atom without a charge would be neutral because the atom  has an equal amount of protons and electrons.
-- The heat is used to boil water. -- The steam is guided through the vanes of a turbine. -- The spinning turbine spins an electrical generator.
The wave length of visible light ranges from 400 nm to 700 nm