A) 0.03\[\Omega \]
B) 0.3\[\Omega \]
C) 0.9\[\Omega \]
D) 0.09\[\Omega \]
Correct Answer: D
Solution :
To increase the range of ammeter we have to connect a small resistance in parallel (shunt), let its value be R. Apply KCL at junction to divide the current. Voltage across, \[R=\]Voltage across ammeter \[9R=0.81\times 1\] \[R=\frac{0.81}{9}=0.09\,\Omega \]You need to login to perform this action.
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