Topic 10- electricity and circuits

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Created by
Will Truman

Cards (27)

  • --| l--. Cell.
  • --| l----|l----. Battery.
  • --(V)--. Voltmeter.
  • --(A)--. Ammeter.
  • --(X)--. Lamp.
  • ---[--]---. Fuse.
  • --o/ o--. Open switch.
  • --[ ]--. Resistor.
  • --[ / ]--. Variable Resistor.
  • --[_/ ]--. Thermistor.
  • --(M)--. Motor.
  • --|>|--. Diode.
  • --(|>|)--. Light Emitting Diode.
  • --([])--. Light Dependent Resistor.
  • A voltmeter measures potential difference.
  • An Ammeter measures current in Amps.
  • Current is the rate of flow of charge.
  • Variable resistor - can change the current - greater resistance= lower current.
  • Potential Difference= Current x Resistance.
  • In a Light Dependent Resistor, as the light intensity increases, the resistance decreases and current increases.
  • Alternating current - the current or voltage is above and below 0.
  • Direct current - does not go below 0.
  • UK supply is 230V.
  • UK supply is 50 Hertz.
  • Energy enters through brown (live) wire.
  • Current returns via the blue (neutral) wire.
  • If current gets too high, fuse melts, breaking the circuit.