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| WATER CIRCUIT BOARD
(0423) |
| To demonstrate the principle of flow of electricity by analogy. Comprises an analogous circuit made of transparent plastic tubing connected to a low voltage electric pump operating on 6-12V DC for circulating water through the circuit, mounted on a large sheet metal board through spring clips. The circuit has two glass tubes of different bores, connected in parallel across the circuit and represents resistances. Across the resistances is connected a detachable manometer to show the pressure drop across the tubes indicating potential difference. Following the resistances, the tube discharges into a funnel for circulation through the circuit. 4mm sockets provided for power input to the pump. Rate of flow of water through the circuit represents current through the circuit and can be controlled by varying the input to the electric pump. Hoffman's Clips provided for disconnecting either of the two resistances or manometer, when needed. |
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