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An electric current occurs in a circuit when a source of energy (or power, which is energy with a time factor) causes electrons to start slowly moving through the circuit at a speed of a few mm or cm per hour. This allows the quantity that we call charge to race through the circuit at a speed of roughly a million miles per hour, which is what we call electric current. Mathematically defined, electric current is the amount of charge which passes a given point in the circuit each second of time, I = Q/t .
The source of energy or power can be as nearby as an energy cell or battery, or can be an electrical generating station located many miles away.
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What causes a electric current in a electric circuit?
Voltage causes current to flow in an electric circuit.
What happens to an electric current when a circuit is closed?
When a circuit is closed, meaning there is a complete path for the electric current to flow, the current will flow from the positive terminal of the voltage source through the circuit components and back to the negative terminal. This flow of current allows electrical energy to be transferred and work to be done in the circuit.
What is the movement of electric charges in a closed circuit?
Electric Current
What instrument measures electric current in a circuit?
An ammeter is the instrument that measures electric current in a circuit. It is connected in series to the circuit to measure the flow of current through it.
What type of circuit cannot conduct an electric current?
An open circuit.
What is an electric current that cannot flow called?
An electric current that cannot flow is called an open circuit. This occurs when there is a break in the circuit which prevents the flow of electrons from moving through the circuit.
What causes a electric current in a electric circuit?
Voltage causes current to flow in an electric circuit.
What causes a current in an electric circuit?
Voltage causes current to flow in an electric circuit.
The pathway taken by an electric current is a?
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.)
A break in the wires of an electric current will the circuit and the current?
A break in the wires of an electric current will break or cut the circuit and stop the current from flowing.
Closed path where electric current can flow is called a?
I guess Electric Circuit....
What is the relationship between the electric field and current in a circuit?
The electric field in a circuit is directly related to the current flowing through it. The electric field is what drives the flow of electric charge, which is the current. In other words, the presence of an electric field is necessary for current to flow in a circuit.
Why can't an electric current exist if the circuit is broken?
If the electric circuit is broken, there will be no medium for transfer of electrons and flow of current. Hence, electric current does not exist.
What is the name for the status of a circuit that has breaks which electric current that cant flow?
The name for the status of a circuit that has breaks which electric current that can't flow is called a Closed Circuit. Electric current cannot flow through an open circuit.
An electric what is a pathway for electric current?
A closed circuit.
Is not essential to obtain electric current?
Electric circuit
When does the electric current flow?
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 closed circuit is required).
