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What is an Ampere (A)? Definition, Symbol, and Examples

Ampere (A) is the unit of electrical current. It is defined as the flow of one coulomb per second. In other words, it is the amount of electric charge that flows through a given area in one second. The symbol for ampere is A.

One ampere is equal to 1000 milliamps (mA), and it is often used to measure the current flowing through a circuit or device. For example, a typical household light bulb might draw 0.5 amperes of current, while a high-powered motor might draw 200 amperes or more.

The concept of ampere was introduced by French physicist André-Marie Ampère in the early 19th century, and it is named after him. It is an important unit of measurement in the field of electrical engineering and electronics, and it is widely used in many applications, such as power distribution systems, electronic circuits, and motor control systems.

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