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| Post offices Box Dial Type (Decade)
(SI-PH-1144) |
| (Wheat stone bridge) These are provided with two ratio dials with 4 ratios of 1, 10, 100 and 1000ohms. The ratio coils of all bridges are selected so that their differences are even less than their inaccuracies of their actual values thus making the bridge a very accurate one. Series resistance is in 4 dials with 10coils in each dial. Two terminals are provided for using the terminals for battery and galvanometer |
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