Electric current and electric charge.

Children love to play with paper boats.

When we leave a paper boat in the water it moves along with the flow of the water.

Flow of something in water is nothing but movement of water molecules.

Similarly, electric charges also have the property to flow.

And this flow of charges gives rise to electric current.

Flow of electric current in a wire is because of electrons moving through it.

The conventional direction of flow of electric current is in the direction of flow of +ve charge.

Hence, the direction of flow of current is opposite to the flow of -ve charges, that is, electrons.

The magnitude of rate of flow of charges, that is, magnitude of current can be calculated.

And here we calculate current which is nothing but rate of flow of charge.

Electric current is the rate of flow of net charge through the conductor.

Electric current is constituted by the flow of electric charges.

Charges contribute to flow of current.

These charges are of different types, some are +ve and some are -ve.

Protons are positively charged and electrons are negatively charged.

Like charges repel and opposite charges attract each other.

So, electron repels electron.

And proton repels proton.

But in the case of proton and electron, they have opposite charges. So, they attract each other.

This repulsion and attraction is due to some force between them. This force is the electrostatic force.

Revision

There are two types of charges. One is positive and the other is negative.

Positive charge is carried by the protons and negative charge is carried by the electrons.

Electric current is the rate of flow of net charge through the conductor.

Magnitude of electric current is given by the equation above.

The direction of electric current is opposite to the direction of conventional electron flow.

The End.