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  • For full scale deflection of total divisions, voltage is required in galvanomet

For full scale deflection of total 50 divisions, 50 \mathrm{mV} voltage is required in galvanometer. The resistance of galvanometer if its current sensitivity is 2 \mathrm{div} / \mathrm{mA} will be :
 
Option: 1 1\Omega
Option: 2 2 \Omega
Option: 3 5 \Omega
Option: 4 4 \Omega

Answers (1)

best_answer

\frac{d\theta}{di}= \frac{2div}{mA}\\

For 50 divisions,the corresponding current will be

i_{g}= 25mA\\

V= 50mV= i_{g}\times R\\

R= 2\Omega

Posted by

vishal kumar

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