A) 2 V
B) 1.95V
C) 3.8V
D) 4V
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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