Question

A galvanometre of 100 ohm resistence coil shows 50 micro ampere whole difflex .how much resistance should be added to make
1. 50 volt voltmetre
2. 10 m a ametre​

Answer 1

Explanation:

in case of increasing the range of current shunt is added to parallel to the galvometer ok so to increase the efficiency of increasing the range of current the shunt should be added parallel in case of increasing the range of voltage it means the conservation of galvometer to volometer shunt should be added