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 \[\Rightarrow 9R=0.81\times 1\] \[\Rightarrow R=\frac{0.81}{9}=0.09\,\,\Omega \]You need to login to perform this action.
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