# A current of 1.50 A flows in a wire. How many electrons are flowing past any point in the wire...

## Question:

A current of {eq}1.50 \ A {/eq} flows in a wire. How many electrons are flowing past any point in the wire per second?

## Electric Current:

In an electric conductor, only the net flow of electrons through a cross section establishes the electric current. The amount of electric current depends on the number of electrons flowing through a cross section per second.

## Answer and Explanation:

**Given Data**

- Electric current in the wire, {eq}I\ = 1.50\ A{/eq}

**Finding the number of electrons ( n) flowing through a given point in time t = 1 sec**

The magnitude of charge of electron is {eq}e\ = 1.6\times 10^{-19}\ C{/eq}

The electric current is given by the expression:

- {eq}I\ = \dfrac{n\times e}{t} {/eq}

- {eq}1.50\ A\ = \dfrac{n\times 1.6\times 10^{-19}\ C}{1\ s} {/eq}

- {eq}n\ = 9.375\times 10^{18}{/eq} electrons

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