Constant DC current and constant DC voltage

Constant DC current and constant DC voltage

A current whose direction does not change is called a direct current, and the corresponding voltage is called a direct voltage - https://domyhomework.club/ . A direct current and also a direct voltage can have a constant value, but also change their value without changing the polarity. Circuits in which a DC current flows are called DC circuits.

Characteristic of a DC current or voltage is the constant direction of the current or the constant polarity. In the simplest case, the current or voltage is constant. Thus, neither the magnitude nor the direction change. Such a DC current occurs in a circuit when a DC voltage source is used as the electrical source in the circuit concerned - next day essay , e.g. a battery, an accumulator or a power supply unit with DC voltage.

Other forms of direct current and direct voltage

However, one also speaks of a direct current or a direct voltage when the magnitude of current or voltage is not constant, but the polarity does not change - do my engineering assignment . A typical example of this is a so-called pulsating direct current, which occurs, for example, when AC voltage is rectified. Other forms of direct current or direct voltage are also possible. The decisive factor is that the polarity remains the same.

Direct current circuit and alternating current circuit

DC circuit and AC circuit can be characterized by the same physical quantities (voltage, current, resistance, power). The same laws also apply to ohmic resistances. However, coils and capacitors behave differently. More detailed information on this can be found under the relevant keywords.

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