A 10V battery with internal resistance \[1\Omega \]and a 15 V battery with internal resistance \[0.6\Omega \] are connected in parallel to a voltmeter (see figure). The reading in the voltmeter will be close to: [JEE ONLINE 10-04-2015] |
A) 11.9 V
B) 13.1 V
C) 12.5 V
D) 24.5 V
Correct Answer: B
Solution :
[b] \[i=\frac{5}{1.6}\] \[=\frac{50}{16}=\frac{25}{8}Amp\] |
\[V=15-\frac{25}{8}\times 0.6\] \[=15-\frac{15}{8}\] \[=13.1\]volt |
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