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This equipment is designed to be a visual aid to understanding electricity by using water as an analogy - the so called hydraulic analogy. Uses transparent plastic tubing, clipped to a sheet metal board, to represent electrical wires and a low voltage electric pump to circulate water through the circuit.
Glass tubes of different bores, connected in parallel across the circuit, represent resistance, and across the resistances a detachable manometer is connected which shows the pressure drop across the tubes, indicating a potential difference. Also, the tube discharges into a funnel for recirculation through the circuit.
The rate of flow of the water flowing through the circuit represents current flow and may be controlled by varying the input to the electric pump.
- Mounted on a large sheet metal board
- Powered by a 6 to 12V DC electric pump
- Board has 4mm sockets for connection to pump
- Tubing secured by spring clips
- Hoffman’s clips provided for disconnection of glass resistances or manometer
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