What is the direction of the current in an electric circuit?
In an electrical circuit always current flows from -ve terminal of the source voltage to positive terminal in a closed circuit and such nature of flowing is called as convention current flow.
Conventional current flow, positive to negative. Electron flow negative to positive. See related link below.
By definition, an electric circuit allows electric current to flow from a source of current and back around to that source in a complete circuit, rather like water from a pump outlet flowing round a pipe back to the pump inlet in a circulating system. The electric current may flow in only one direction at all times (direct current, or pumping in only one direction) or may change direction periodically (alternating current, or reversing the…
Conventionally electric current was assumed to be a flow of positive charges. But in reality especially in metals electric current is due to the flow of negatively charged electrons. So direction of conventional current is opposite to the direction of flow of electrons. But in case of liquids as well as solids electric current is due the flow of both positive and negative ions.
As current is the rate of flow of electric charges As I=Q/t so,there must be free electrons for the flow of electric current in a circuit.Then when voltage is applied at the terminals of circuit the free electrons acquire an average velocity called as drift velocity in the opposite direction to that of electric field (-E).Now the free electrons modify there random motion and a steady current begin to flow in a circuit.
An electric current will flow if there is a voltage, and a conducting path (usually a closed circuit is required). An electric current will flow if there is a voltage, and a conducting path (usually a closed circuit is required). An electric current will flow if there is a voltage, and a conducting path (usually a closed circuit is required). An electric current will flow if there is a voltage, and a conducting path (usually…
A switch basically represents a gap in the electric circuit. Electric current can pass through a circuit only if it is complete. An incomplete circuit can never pass a current through it. When the switch is in the 'off' position, the circuit has a break (gap) in it. When you put the switch in 'on' position, the circuit wire join and the circuit gets completed.
Electric current does not drop. Electric voltage, however, drops across a wire because the wire has non-zero resistance. (Do not confuse electric current with electric voltage - they are not the same.) The reason current does not drop is that, in a series circuit, according to Kirchoff's current law, the current at every point in a series circuit is the same.