Water Circuit Board
A simple analogue apparatus demonstrating the fundamentals of flow of electric current through a conductor. A large board has a small network of clear plastic pipes, which is analogous to the electrical circuit and a low-voltage electric pump that circulates the water through the circuit of plastic tubing connected to glass tubes of different bores representing resistances. Across these two resistances is a detachable manometer to show the potential difference. Just adjacent to the resistance tubes is a tapered tube discharging into a funnel representing the rate of flow of to indicate the current.
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SINGHLA SCIENTIFIC INDUSTRIES
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