Question

As you know that the current is measured in AMPERE . So, why it is denoted by "I"?

Answer 1

Answer:

The conventional symbol for current is I, which originates from the French phrase intensité du courant, (current intensity). Current intensity is often referred to simply as current. The I symbol was used by André-Marie Ampère, after whom the unit of electric current is named, in formulating Ampère's force law (1820).

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Answer 2

Answer:

The ampere (symbol: A) is an SI base unit Electric current is measured using a device called an ammeter. Electric currents cause Joule heating, which creates light in incandescent light bulbs. They also create magnetic fields, which are used in motors, inductors and generators.

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