POINTS
The main function of an electric circuit is to provide a path for electrons to flow. The electrons are from a current source flow or voltage.
A battery.
Increasing the intensity of light or using a shorter wavelength light source can cause an electric current to flow in a photoelectric effect experiment. The energy of the photons should be increased to overcome the work function of the metal surface, allowing electrons to be ejected and generate a current.
An electric current is movement of electrons, no matter the source or cause.
To measure electric current intensity.
Alah
A temporary source of an electric current is called a battery. It converts chemical energy into electrical energy to power devices or circuits.
electric current is the flow of electrons due to external energy (emf) supplied by the voltage source.
Electric charge is a property of matter that determines how it interacts with electromagnetic fields, while electric current is the flow of electric charge through a conductor. In other words, electric charge is the source of electric current, which is the movement of charged particles.
Electric current flows from the power source through a circuit. It moves from the positive terminal of the source, through the wires or conductors, to the load (e.g. a lightbulb), and then returns to the negative terminal of the power source to complete the circuit.
Either the cell e.g. a battery, if one is included in the circuit. Or a generator such as a dynamo
A battery is a common temporary source of electric current. When connected to a circuit, a battery transforms stored chemical energy into electrical energy to power devices or equipment. Once the stored energy is depleted, the battery needs to be recharged or replaced to continue providing electric current.