Hand Battery

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Produced by Solar Spark, this activity shows how two metal plates and a person, can make a battery (cell). This helps to demonstrate how a solar photovoltaic cell works.

A solar cell has two electrodes. These have to be connected up to make a circle which we call an electrical circuit. One side is connected using wires and the other side is connected by way of an electrolyte. When students put their hands on the metal plate electrodes, they become the electrolyte. Current can flow through students' sweat and body fluids so a reading is seen on a milliAmmeter.

The activity helps to illustrate:
* electricity
* electric circuits
* photovoltaic solar cells

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Please be aware that resources have been published on the website in the form that they were originally supplied. This means that procedures reflect general practice and standards applicable at the time resources were produced and cannot be assumed to be acceptable today. Website users are fully responsible for ensuring that any activity, including practical work, which they carry out is in accordance with current regulations related to health and safety and that an appropriate risk assessment has been carried out.

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