A cell is a device in which a chemical reaction is used to produce electricity. One type of cell, known as a simple cell, can be made by dipping two different metals into a solution which is able to conduct a current of electricity. The metals are the electrodes of the cell and the conducting solution is called the electrolyte. By connecting the two electrodes to a voltmeter, the voltage which the cell generates can be measured.

The aim of this experiment is to investigate a factor which might affect the size of the voltage generated by a simple cell.

Factors affecting Voltage – Pupils

Factors affecting Voltage – Teacher/Technician

Factors affecting Voltage – Risk Assessment