Exam with complete solution
Ammeter
An instrument for measuring current
Ampere (A)
An electrical unit of current
Atom
The smallest particle to which an element may be divided and still retain the properties
of the element.
Battery
A DC voltage source consisting of two or more cells that convert chemical energy into
electrical energy.
Circuit
A complete path for current flow.
Conducter
A material through which it is relatively easy to maintain an electric current.
Coulomb
An electrical charge equal to 6.25x10^18 electrons. It is the common unit of quantity
used for specifying the size of a given change.
Current
The movement or flow of electrons in a circuit. It is measured in amperes.
Electron
A negatively charged particle that orbits the nucleus of an atom
Insulator
A material through which it is difficult to conduct an electric current.
Joule
A unit of measurement that represents one newton-meter, which is a unit of measure for
doing work.
Kilo