Simple Circuits

Describe the behavior of a circuit.

  • A circuit is composed of electrical loops, which may include circuit elements such as wires, batteries, resistors, lightbulbs, capacitors, switches, ammeters, and voltmeters.
  • A closed electrical loop is a closed path through which charges may flow.
    • A closed circuit is one in which charges would be able to flow.
    • An open circuit is one in which charges would not be able to flow.
    • A short circuit is one in which charges would be able to flow with no change in potential difference.
  • A single circuit element may be part of multiple electrical loops.
  • Circuit schematics are representations used to describe and analyze electric circuits.
    • The properties of an electric circuit are dependent on the physical arrangement of its constituent elements.
    • Circuit elements have common symbols that are used to create schematic diagrams. Variable elements are indicated by a diagonal strikethrough arrow across the standard symbol for that element.

Unless otherwise specified, all circuit schematic diagrams will be drawn using conventional current.

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Simulation page: Circuit Construction Kit: DC

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