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What is DC Current?

Encyclopedia

07/17/2024

What is DC Current?

Direct Current Definition

Direct current is a constant and unidirectional flow of electric charge, moving from a negative to a positive terminal.

AC vs DC

Direct current flows in one direction and is used in applications requiring stable voltage, while alternating current can reverse direction and is typically used where varying power levels are needed.

DC Current Symbol

The symbol for DC current is a straight line, indicative of its consistent and unchanging direction.

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Measurement Techniques

DC current is measured using a multimeter or a clamp-on meter, which assesses the flow of electricity through a circuit.

Direct current applications

DC supply is used in many low voltage applications like charging mobile batteries.
In a vehicle, the battery is used to start the engine, lights, and ignition system.
In communication, a 48V DC supply is used.
In a solar power plant, energy is generated in the form of DC current.

How To Measure DC Current

The DC current can be measured by a multimeter. The multimeter is connected in series with the load.The Black (COM) probe of a multimeter is connected to the negative terminal of the battery. The positive probe (red probe) is connected to the load.

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Topics

Basic knowledge DC Current

Encyclopedia

The Electricity Encyclopedia is dedicated to accelerating the dissemination and application of electricity knowledge and adding impetus to the development and innovation of the electricity industry.

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