MCQOPTIONS
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| 1. |
The resistance of 10 metre long potentiometer wire is 1ohm/meter. A cell of e.m.f. 2.2 volts and a high resistance box are connected in series to this wire. The value of resistance taken from resistance box for getting potential gradient of 2.2 millivolt/metre will be [RPET 1997] |
| A. | \[790\,\Omega \] |
| B. | \[810\,\Omega \] |
| C. | \[990\,\Omega \] |
| D. | \[1000\,\Omega \] |
| Answer» D. \[1000\,\Omega \] | |