MCQOPTIONS
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MCQOPTIONS
| 1. |
The resistance of a metal is given by \[R=\frac{V}{I}\]where V is potential difference and I is the current. In a circuit the potential difference across resistance is \[V=(8\pm 0.5)V\] and current in resistance \[I=(2\pm 0.2)A\]. What is the value of resistance with its percentage error? |
| A. | \[4\Omega \pm 16.25%\] |
| B. | \[(4\pm 0.7)\Omega \] |
| C. | \[4\Omega \pm 0.7%\] |
| D. | \[4\Omega \pm 7%\] |
| Answer» B. \[(4\pm 0.7)\Omega \] | |