Difference between unidirectional and bidirectional flow of electrons
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AC (Alternating Current)
AC is the type of electric current in which polarity of the current does not remain constant. The current is the consequence of flow of electrons. If electron flow in one direction, it is unidirectional current but if it flows in 2 directions, i.e. forward and backward it is called bidirectional current.
AC is bidirectional Current. You must be thinking what makes AC conduct bidirectionally. Your answer lies in the generation of AC. The current carrying wire is placed in rotating magnetic field. Now, the direction of flow of electrons also varies with the movement of the magnetic field.
DC (Direct Current)
Direct current is also caused by the flow of electrons, but the generation process of direct current is opposite to that of AC. Unidirectional current can be generated if the wire carrying current is placed in the static magnetic field.
The electrons flowing in the wire will experience the force in one direction only because the magnetic field is steady. Thus, the flow of electrons in one direction will generate DC. DC power gets diminished with the increase in the distance of transmission. This makes it unsuitable to use for long distance transmission.
AC is the type of electric current in which polarity of the current does not remain constant. The current is the consequence of flow of electrons. If electron flow in one direction, it is unidirectional current but if it flows in 2 directions, i.e. forward and backward it is called bidirectional current.
AC is bidirectional Current. You must be thinking what makes AC conduct bidirectionally. Your answer lies in the generation of AC. The current carrying wire is placed in rotating magnetic field. Now, the direction of flow of electrons also varies with the movement of the magnetic field.
DC (Direct Current)
Direct current is also caused by the flow of electrons, but the generation process of direct current is opposite to that of AC. Unidirectional current can be generated if the wire carrying current is placed in the static magnetic field.
The electrons flowing in the wire will experience the force in one direction only because the magnetic field is steady. Thus, the flow of electrons in one direction will generate DC. DC power gets diminished with the increase in the distance of transmission. This makes it unsuitable to use for long distance transmission.
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