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# What is the equation linking charge, current and time?

2 years ago

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6 Replies

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11018 views

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Marjolaine Borer

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Charge=current x time

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Q = It,

Q is charge, I is current, t is time

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The relationship between charge (Q), current (I), and time (t) is as follows:

An electric current (I) is defined as a rate of flow of charged particles.

Current (I) = Amount of Charge (Q)/time taken (t)

I=Q/t

An extra piece of information:

1. In the SI (Standard International) system of units, the amount of charge is measured in "Coulombs" and time in "seconds". Thus SI unit of current is Coulomb/second which is known as Ampere (A).
2. In the metallic conductors, the charged particles are free electrons and the net flow of these electrons in one direction is known as electric current. Keep in mind, we need a source of energy, for example, a cell or battery, to make the free electrons move in the same direction.

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The charge equals the product of the current and the time.

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A
Alice D

Hi Marjolaine! The equation most commonly used is Q = It, where Q is the charge, I is the current and t is the time.

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Mayankkumar Shravanbhai Maheshwari

current is directly proportional to charge and inversely proportional to time. So, equation is I=Q/t

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