Electric Circuits
This page introduces the basics of electric circuits, covering standard symbols, series and parallel circuits, and measurements. This topic is crucial for GCSE Physics revision notes.
Vocabulary: The page provides a comprehensive list of standard symbols used in circuit diagrams, including switches, lamps, resistors, power supplies, and more.
The page explains the differences between series and parallel circuits:
Definition: In a series circuit, if one component breaks, the entire circuit stops working. In a parallel circuit, if one component breaks, the others continue to function.
Highlight: In a series circuit, the current remains the same throughout, and voltages add up to the supply voltage. In a parallel circuit, the voltage is the same across each branch, and the sum of currents in each branch equals the supply current.
The page also covers measuring current and voltage, introducing Ohm's law:
V = I x R Voltage=CurrentxResistance
This information provides a solid foundation for understanding electric circuits, which is essential for GCSE Physics students.