This Wheatstone bridge allows accurate comparison of two resistances by sliding a 'jockey' contact along a metre length of 'resistance wire'.When a balance is achieved, indicated by a zero reading on a galvanometer (not included), the position of the jockey on the wire, gives an indication of the ratio of the two fixed resistances. If the value of one of the fixed resistances is known, the value of the other can be inferred.The substantial bridge has broad, heavily plated brass strips mounted on a polished hardwood base. Terminals with 4mm sockets are provided. 24 SWG constantan wire is stretched along the top of a metre scale graduated in mm and cm. |
