A) 10V
B) 6V
C) 12 V
D) 9 V
Correct Answer: D
Solution :
Using the relation, \[i=\frac{E}{R+r}\] Here, \[r=5\times {{10}^{-2}}=0.05\Omega ,\,E=12V,\,i=60a\] \[60=\frac{12}{R+0.05}\] \[=60R+3=12\] So, \[R=\frac{9}{60}\Omega \] Now, voltage across cell is given by \[V=iR=60\times \frac{9}{60}=9V\]You need to login to perform this action.
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