Potential Dividers addresses the following learning objectives:

• Understand the use of potential divider circuits to provide a constant or variable potential difference from a power supply;
• Recall and use the potential divider formula;
• Explain the use of thermistors, LDRs and strain gauges in potential divider circuits and how they provide a potential difference output dependent on temperature, light level and strain respectively;
• Describe the structure of a metal wire strain gauge;
• Understand the uses of a potentiometer.