A moving coil galvanometer of resistance 
shows a full scale deflection for a current of 1 mA. The value of resistance required to convert this galvanometer into an ammeter, showing full scale deflection for a current of 5 mA, is 
Text Solution
Verified by ExpertsThe correct answer is:
D
To convert a galvanometer to an ammeter, a shunt resistance 
is connected in parallel. For full-scale deflection:
Current through galvanometer: 
Total current: 
Current through shunt: 
Since voltage across both is equal: 
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