The definition of a current is a collection of moving charges.
Hence for current to flow, one needs charge and one needs it to move.
One gnerally aciees this on Earth with a conductor and a voltage or potential difference that creates and electric field and charges feel a frorce and move creating current.
The conductor may be a wire and the charges may be electrons.
The conductor might also be water with dissolved salt and the electric field causes the salt ions to move and it is the moving ions that constitute the current.
If you are the Sun and you are producing electrons and protons on the solar wind, then complex electromagnetic fields may have ejected the charges from the sun, but the current that is the charge moving through space is maintained just hy the inertial of the particles. You don't need an electric field to maintain the current and you don't need a conductor to hold the charges.
For a current to flow, you need net charge moving. That is all. Current is technically charge density times velocity.
For measuring electrical Current the electrical equipment used is Amphere meter. This equipment tells the current flow in the equipment.
A flow of electrical charges running through a medium is known as an electrical current.
Electrical conductors.
A load increases the flow of electrical current in a series circuit. No load, no flow.
current is the flow of charge.
A device used to adjust the flow of electrical current is called a resistor.
Yes, when a switch is closed in an electrical circuit, electrons flow through the conductor, providing the electrical current needed for the circuit to work. The flow of electrons is what generates electricity and powers the various components in the circuit.
Electrons flow because of electrical attraction and repulsion.
The flow of current through a wire is known as electrical current.
In automotive, electrical circuits current is considered to flow from the battery. Most cars will have a 12-volt battery which will provide the electrical circuits current.
An electrical current will only flow in a closed loop or circuit where there is a complete path for the electricity to follow. If there is a break in the circuit or an open switch, the current will not flow.
A resistor restricts the flow of current in an electrical circuit by resisting the flow of electrons. This causes a decrease in the amount of current that can pass through the circuit.