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Hand Battery
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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Hand battery 47.68 KB