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What does I stand for in electricity?

What does I stand for in electricity? I think, the question roams in many of your mind. Many of you think that, why is I used for denoting the current instead of c? Well, there’s a very interesting myths about it. Someone funnily answer that, before inventing current, the capacitance was invented and C is used for denoting capacitance. So, after inventing current, it is symbolized by I.

However, forget the myths and funny answer. Here, I’m going to explain why is the current denoted by I. Before my explanation, let’s know what is electric current?

What is the electric Current?

The electrical current is a flow of electrical charge carriers, most commonly electrons or electron-deficient atoms.

Deeply think the definition of electrical current. It states that the flow of electrons through an conductor material ( wire) is called current. In other word the stream or intensity of electrons is called current. So, form the first letter ‘I’ of the word ‘Intensity’, current is symbolized by I. The word intensity comes from a French phrase intensité du courant, (current intensity).

I hope you got the answer to the question.

What does I stand for in electricity?

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).

What is the SI unit of current?

The standard unit of current is Ampere. The symbol of ampere is A or Amp. 1 ampere current represents one coulomb of electrical charge(6.24×1018 charge carriers) moving past a specific point in one second.

How to measure current?

We can easily find the value of current in an electrical or electronics circuit following Ohm’s law. Ohm’s law states that the current through a conductor between two points is directly proportional to the voltage across the two points. And inversely proportional to the resistance of the conductor. The mathematical expression of this law is


here, I represents current, V voltage and R resistance.

I hope you have enjoyed the post.

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