Does Electron Flow Reverse the Conventional Current Direction?

In summary, the conversation discusses the confusion surrounding the direction of current flow in electric circuits. It is conventionally said that current flows from the positive to the negative terminal, but this is not always the case as current can also be carried by negative charge carriers such as electrons. This raises the question of whether the high potential terminal is actually negative and the low potential terminal is positive. However, in most cases, it is simpler to stick with the convention and consider positive charges as the current carriers.
  • #1
shehri
30
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Homework Statement


I'm much too confused about direction of flow of current.Conventionally, it's said that flow of charge is due to +ve charge carriers & high potential end of battery being +ve & low potential end being -ve,current flow will be from positive(high) to negative (low) terminal.But in case of electric current when flow of current is due to electrons (-ve charge carriers) what'll become of high & low ends.Should'nt we say that high potential terminal is -ve & low potential is positive because it's electron deficient?.In simple terms my confusion is:
"If electronic circuit is due to electron flow ,are they flowing from high (-ve) to low(+ve) terminal?

Homework Equations



N.A

The Attempt at a Solution


Nill
 
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  • #2
shehri,

we all are confused. With metallic wires, electrons carry charge, but in other instances positive ions, carry current. So we decide that by convention, positive charges are the current carriers, knowing well this isn't true. BUt the math comes out the same for simple physics.
 
Last edited:
  • #3


I can understand your confusion about the direction of current flow. The conventional direction of current flow, from positive to negative terminal, is based on the flow of positive charge carriers. This convention was established before the discovery of electrons and their role in electric current. In reality, the flow of electric current is due to the movement of electrons, which are negatively charged. Therefore, in an electronic circuit, the electrons are flowing from the negative (high potential) terminal to the positive (low potential) terminal.

However, it is important to note that the direction of current flow does not affect the function of an electronic circuit. The important factor is the flow of charge, not the direction of flow. So, whether we consider the flow of electrons from high to low potential or from low to high potential, the circuit will still function in the same way.

In summary, the conventional direction of current flow is based on positive charge carriers, but in an electronic circuit, the flow of electrons is from high to low potential. I hope this helps to clear up your confusion.
 

1. What is the direction of current flow?

The direction of current flow is the direction in which positive charges move. In most cases, this is from the positive terminal to the negative terminal of a circuit.

2. How is the direction of current flow determined?

The direction of current flow is determined by the direction of the electric field. Positive charges will move in the direction of the electric field, while negative charges will move in the opposite direction.

3. Does current always flow in the same direction?

No, current can flow in both directions in an alternating current (AC) circuit. In a direct current (DC) circuit, the current flows in one direction only.

4. Can the direction of current flow be changed?

Yes, the direction of current flow can be changed by reversing the polarity of the power source or by using electronic components such as diodes and transistors to control the flow of current.

5. What is the difference between conventional current and electron current?

Conventional current is the direction of current flow that was established before the discovery of electrons. It assumes that current flows from positive to negative. Electron current, on the other hand, is the actual flow of electrons from negative to positive, which was later discovered through experiments.

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