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SS1: PHYSICS – 3RD TERM

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Heat Energy

This is achieved when two ends of dissimilar wires are joined end to end (e.g. Aluminum and copper). One end is placed in hot water and the other junction in cold water thereby setting up different potential.

This device is known as a thermocouple and it produces electricity by the thermoelectric effect. The greater the difference in temperature between the two junctions, the greater the electric current.

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