electron

How many electrons are there in electric current?

We can define an electric current as the flow rate of an electric charge past a certain point. This sort of current exists when we have a net flow of electric charges within a particular region. When we look at an electric circuit, we can see that the charge itself is carried … Read more

What kind of a star is called White Dwarf?

The stars we see in our night sky are not all the same, though they look very similar to our limited view. Some of the stars we see are actually planets, while other points of light might even represent stars that have died long before their light reaches us. Plus, stars themselves … Read more