Electrical circuits

A secondary school revision resource for OCR 21C GCSE Additional Science about electric circuits , resistance and current, electric charge, mains electricity and how electricity is produced. Learn about the meanings of electrical symbols and properties of electrical circuits with BBC Bitesize GCSE Physics. The point where those electrons enter an electrical circuit is called the source of electrons. The exit point is called the return because electrons . What is an electrical circuit ?

A closed circuit makes electrical current flow possible.

It may also be an open circuit where the electron flow is cut short because the path is broken.

The various electrical components are shown by using standard symbols in circuit diagrams. Components can be connected in series, or in parallel. The characteristics of the current and potential difference (voltage) are different in series and parallel circuits.

Because the switch produces electricity. Find out what circuits are and how you can change them by adding in items like switches and batteries. How do you draw electrical symbols and diagrams? In this video on circuits ,kids can learn differences between parallel circuits and simple circuits.

Electrons can flow through these. A simple explanation on how an electrical circuit operates. Linear electrical networks, a special type consisting only of sources (voltage or current), . The following pages are in this category , out of total.

This list may not reflect recent changes (learn more). The size of the current flowing depends on the potential difference ( voltage) . Current and voltage in electrical circuits - Test. A rectangle with an arrow across it. Inputs and outputs in electronic circuits. The input is what sets an electrical circuit in action.

Explaining different types of circuits including series and parallel circuits. The activities form an introduction to practical work exploring circuits. For electricity to be safe, we use closed paths for the current to flow.

Find out more about electrical circuits by playing this quiz from Education Quizzes.