A) 2 V
B) 1.95 V
C) 3.8 V
D) 4 V
Correct Answer: B
Solution :
Here, the resistances of \[400\,\Omega \] and \[10000\,\Omega \]are in parallel, their effective resistance \[{{R}_{P}}\]will be \[{{R}_{P}}=\frac{400\times 10000}{400+10000}\] \[=\frac{5000}{13}\Omega \] Total resistance of the circuit, \[=\frac{5000}{13}+800=\frac{15400}{13}\Omega \] Current in the circuit \[i=\frac{6}{15400/13}=\frac{39}{7700}A\] Potential difference across voltmeter \[=i{{R}_{P}}\] \[=\frac{39}{7700}\times \frac{5000}{13}=1.95\,V\]
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