An electric circuit is opened whenever a part of it is not connected to anything.
When an electric cell is a part of a complete electric circuit, the chemical energy of its chemical is converted in to electrical energy.
A switch, switching transistor, or circuit breaker usually does.
2 amperes
Battery.
Current is the flow of electric charge or the rate of the flow of an electric charge through a conductor.
switch, motor or rotor.
An electric circuit is a system of several parts. The circuit cannot function without all of them therefore there is no 'main' part. Essential parts are; power source, conducting material, load.
The term is "circuit" (from the same root as circle) An electric circuit must be uninterrupted for the current to flow. (This is why circuit-breakers are also called circuit-interruptors.)
Voltage causes current to flow in an electric circuit.
the history of the electric circuit is that the person who made it his name is jack kilby but the history is that the electric circuit was one of the easiest way was to make the electric circuit when the electricity went out. THE END
Anything with a voltage power source, connecting wire and a load is an electric circuit. Hence if you have a flashlight you have an electric circuit.