An electron has a negative charge, and a proton has a positive charge.
2. The amount of electricity accumulated in a body by the gain or loss of electrons.3. An accumulation of electricity in a storage battery, capacitor, etc., which may be discharged.
4. The quantity of electricity that flows in electric currents or which accumulates on the surfaces of dissimilar nonmetallic substances that are rubbed together briskly.
A charge can be positive or negative and one positive charge can combine with one negative charge, and the result is a net charge of zero.
Two objects that have an excess of the same type of charge repel each other, while two objects with an excess of opposite charges attract each other.
2. The electric charge carried by a single proton, or equivalently, the absolute value of an electric charge carried by a single electron.
2. The algebraic sum of all positive and negative electric charges present in a specific volume or surface element.
3. An electric charge which is in a state of equilibrium.
2. The charge of an electron; the charge of any ion is equal to this electron charge in magnitude, or is an integral multiple of it.
The charge controller may also indicate the system operational status.
Usually expressed in relation to the total battery capacity; for example, C/5 indicates a charge factor of 5 hours. Related to charge rate.
This rate is commonly normalized by a charge control device with respect to the rated capacity of the cell or battery.
2. A device for forming images electronically, using a layer of silicon that releases electrons when struck by incoming light.
The electrons are stored in pixels and read off into a computer at the end of the exposure. CCD's have now almost entirely replaced photographic film for applications: such as, astrophotography where extreme sensitivity to light is so important.
The CCD is an electronic detector that replaces photographic plates or film.
It converts light into a electric charge, which is used to form images on a computer screen.
The charge-coupled device was developed as a replacement for television camera tubes and is commonly used in today's camcorders.
Modern astronomical CCD's are much larger, with as many as 16 million separate detectors, or pixels.
Because they are far more sensitive to light, charge-coupled devices produce better pictures than traditional photographic methods and astronomers can see extremely faint galaxies in almost any part of the sky.