conventional current的意思|示意

Conventional current, also known as flow of electric charge, is an intuitive concept used in circuit theory. The technical definition of conventional current is the direction of flow of positively charged particles, but for the most part, it is assumed to be the direction of flow of electrons.

The direction of conventional current is from the positive terminal to the negative terminal in an electronic circuit, although the actual current is in the opposite direction, flowing from the negative terminal to the positive terminal. This opposite direction of flow of electrons is known as electron current.

Conventional current is used in many electrical applications that involve the use of electrical components such as resistors and capacitors. For example, in a resistive circuit, the current flow is determined by Ohm’s law, which stipulates that the current flow is proportional to the voltage applied to the circuit.

In a capacitive circuit, the current flow is determined by the capacitance of the circuit, which is the measure of the ability of the circuit to store electric charge. In this case, the current flow is opposite to the direction of applied voltage.

Due to the different formulation of Ohm’s law, conventional current is also used in many integrated circuits, in which the current flow is determined by the voltage applied to circuit components.

In conclusion, conventional current is used to describe the direction of flow of electric charge within a circuit, and it is used to determine current flow in resistive and capacitive circuits.