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GCSE Design and Technology · key term
The potential difference between two points in a circuit, measured in volts (V). It describes the energy transferred per unit charge between those points.
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Component 1
Revise: Electronic Systems, Inputs and OutputsVoltage is the potential difference between two points, measured in volts (V). It describes how much energy is transferred per unit charge. Current is the rate of flow of electric charge, measured in amperes (A).
For a series current-limiting resistor, use the voltage across the resistor, not automatically the whole supply voltage.
For a potential divider, identify which component is between the output junction and 0 V before deciding whether the output voltage rises or falls.
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