What is Electric Current in English?

Mô tả sản phẩm

The English term for cường độ dòng điện is **electric current**. It's often simply called **current**.

Understanding Electric Current

Definition of Electric Current

Electric current refers to the flow of electric charge. In most electrical circuits, this charge is carried by moving electrons in a conductor, such as a wire. The magnitude of the current is measured in amperes (amps), often abbreviated as A. A higher amperage indicates a greater flow of charge.

Measuring Electric Current

Electric current is measured using an ammeter, a device connected in series with the circuit. The ammeter measures the rate at which electric charge flows past a point in the circuit.

Types of Electric Current

There are two main types of electric current:

• Direct Current (DC): The electric charge flows in one direction only. Batteries are a common source of DC.
• Alternating Current (AC): The electric charge periodically reverses direction. Household electricity is typically AC.

Electric Current and Voltage

Electric current is closely related to voltage. Voltage, measured in volts (V), is the electrical potential difference between two points in a circuit. Voltage provides the "push" that drives the electric current through the circuit. Ohm's Law (V = IR) describes the relationship between voltage (V), current (I), and resistance (R).

Applications of Electric Current

Electric current is fundamental to countless applications, including powering electronic devices, lighting homes and businesses, running industrial machinery, and enabling communication technologies.

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