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Current flow refers to the movement of electric charge, typically carried by electrons in a conductor. It is measured in amperes (A) and is driven by a voltage difference across a circuit. Current can flow in two directions: direct current (DC) flows in one direction, while alternating current (AC) periodically reverses direction. The flow of current is influenced by resistance, which impedes its movement and is measured in ohms.
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Is true if there is voltage in circuit there must be electrons flowing through the circuit.?
No. For electrons to flow, you need a current.
What is the direction of current due to flow of electrons if it is not conventional current?
The direction of current due to flow of electrons is opposite to the direction of conventional current. This is because electrons have a negative charge, so when they flow in a wire, they are actually moving in the opposite direction to the current flow defined by convention.
Is it true that current is a the rate of flow of electrons?
Yes, current is the flow of electric charge, typically carried by electrons in a conductor. It is measured in amperes and represents the rate at which electrons pass through a given point in a circuit.
What is the rate at which electrons do work?
Current. The flow of electrons is the flow of a moving charge. The rate of flow is current (the amount of charge that flows in a set time). The equation is: I = Qt Hope this helps.
Why must a circuit be closed in order for current to a flow?
A circuit must be closed in order for a current to flow because it helps keep a current flow pass. When the switch is closed on a circuit there is a constant flow. When the switches open the flow is disturbed around the circuit.
Is a flow of electromagnets called an electric current?
Yes this true!
Current will flow as long as the power supply is good and there's a power-control device true or false?
Current will flow as long as there is a difference of potential (a voltage) and a path for current to flow. So no power-control device is required for current flow but yes it will flow with a power control decive.
What Current is the flow of an electric charge.true or false?
True. Electric current is the flow of electric charge through a medium. It is typically measured in amperes (A) and represents the rate of flow of electric charge.
Electric current is the continuous flow of atoms in a conductor. True or false?
False. Electric current is the flow of electric charge (usually carried by electrons) through a conductor, not the flow of atoms.
Which is true resistor?
hinders flow of current
Moving a wire through a magnetic field does not create a current flow in a wire?
Not true - Moving a wire through a magnetic field doescreate a current flow in a wire.false
True or False. The imbalance of electrons in an atom creates a movement of electrons called the electric current?
False. The imbalance of electrons in an atom does not create electric current. Electric current is the flow of electric charge, which is the movement of electrons through a conductor. The movement of electrons in an atom due to an imbalance is known as an electric field, which can lead to the flow of electric current when a conductor is present to allow the movement of electrons.
Is it true that electrical current flows from a state of rest to a high pressure state?
No, it is not true. An electrical current (which is a flow of electrons) can only flow from a higher pressure state (higher voltage) to a lower pressure state (lower voltage).
Is it true that the bigger sized cable offers less resistance to current flow?
yes
Is it true that In Ohms law the variable i represents the rate of flow of charge which is called impedance?
"I" represents the current which is the flow of electric charge. Impedance is the measure of the opposition to the flow of current at a given voltage usually in a.c. circuits.
Is it true that the flow of charges through material is electric current?
Yes, the flow of electric charges through a material is known as electric current. This flow of charges typically involves the movement of electrons in a conductor when a voltage is applied across it.
What is true about current?
It is measured in amps. It is related to voltage and resistance by Ohm's Law. It is the flow of electric charges.
