The basics of circuits

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What is current?

  • flow of electron
  • current will only flow if there is a voltage
  • current is measured in amps, A
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What is voltage?

  • The force that pushes the current around. This means if you increase the voltage you increase the current
  • battery
  • measured in volts, V
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What is Resistance

  • Resistance is anything that slows down or opposes the flow of electrons.
  • This means if you increase the resistance the current decreases (or more voltage is needed to keep the same current flowing)
  • measured in ohms, Ω
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