AQA GCSE Physics - Circuit Symbols 2022

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AQA GCSE Physics - Circuit Symbols 2022 Switch (Open) - ANS-Provides a break in the circuit, could be a loose wire which is connected by hand Switch (Closed) - ANS-Provides a path for the current... to flow when closed. Cell - ANS-Chemical source of energy providing Vvolts. Long bar is the positive terminal, short bar the negative terminal Battery - ANS-A number of cells added together in series to form a "Battery". This provides more voltage. No Cells x Vvolts Diode - ANS-Made of a semiconductor! Allows current to flow in one direction only. The direction of the triangle. Has high resistance in the other direction. Usually starts to conduct at about 0.6V Resistor - ANS-Often a large piece of metal which is more resistant to current than copper wire. Resists the flow of current and converts the energy into heat Variable Resistor - ANS-Just a resistor which we can vary with a little knob. In practice it is a really long piece of wire coiled together with a fly lead which we move up and down (ohms law)... [Show More]

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