A) \[2\,\,\Omega \]
B) \[1.5\,\,\Omega \]
C) \[1.0\,\,\Omega \]
D) \[0.5\,\,\Omega \]
Correct Answer: C
Solution :
| [c] Internal resistance of the cell is given by |
| \[r=\left( \frac{E-V}{V} \right)R\] |
| Given, \[E=1.5\text{ }V,\text{ }V=1.0\text{ }V,\text{ }R=2\,\Omega \] |
| \[\therefore \] \[r=\left( \frac{1.5-1.0}{1.0} \right)\times 2=\frac{0.5}{1.0}\times 2=1.0\,\Omega \] |
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