Conversion of Galvanometer into an Ammeter | Plus Two Physics Tutorials скачать в хорошем качестве

Conversion of Galvanometer into an Ammeter | Plus Two Physics Tutorials

Is it possible to convert galvanometer into an ammeter? YES, It is possible to convert it to an ammeter. A galvanometer is a device used to detect the flow of current in an electrical circuit. Even though the deflection is directly proportional to the current, the galvanometer scale is not marked in ampere. Being a very sensitive instrument, a large current cannot be passed through the galvanometer, as it may damage the coil. However, a galvanometer is converted into an ammeter by connecting a low resistance in parallel with it. As a result, when large current flows in a circuit, only a small fraction of the current passes through the galvanometer and the remaining larger portion of the current passes through the low resistance.