Breckland Scientific 2023 Catalogue

Electricity

Resistors & Resistance

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1 POTENTIOMETER To be used as a potential divider in multiple experiments. It uses the principle that the resistance of a fixed diameter conductor varies with length. This potentiometer consists of an aluminium base with length of constantan wire mounted alongside a metre rule and terminated with 4mm screw posts. It is supplied with a jockey, for taking readings along the metre scale. Cat No. Description Price Per ELR-050-100 Potentiometer 51.73 ea. ELR-050-150 Spare Jockey 13.98 ea.

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Potentiometer

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2 WHEATSTONE BRIDGE Used to measure an unknown electrical resistance by balancing two legs of a bridge circuit, one leg of which includes the unknown component. This wheatstone bridge consists of an aluminium base with a length of constantin wire mounted alongside a metre rule and terminated with 4mm screw posts. Each end is effectively connected together to form the bridge but with 4 gaps to allow the insertion of known or unknown resistors. It is supplied with a jockey for taking readings along the meter scale. Cat No. Description Price Per ELR-400-100 Wheatstone Bridge 58.67 ea.

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Wheatstone Bridge

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