The current flowing through the wires is like ... is represented by its own symbol when drawing an electrical circuit diagram. The flow of electricity is invisible and it can be difficult to ...

LEDs, like batteries, have polarity, which means that there is a specific direction that current must flow through them: it must enter through the positive lead and exit through the negative lead in ...

Flow of electric charge is known as electric current and in electric circuits the charge is carried by moving electrons in a wire. In this article you will get 10 solved Physics practice questions ...