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				| 1. | A 2 volt battery, a \[15\,\Omega \] resistor and a potentiometer of 100 cm length, all are connected in series. If the resistance of potentiometer wire is \[5\,\Omega \], then the potential gradient of the potentiometer wire is [AIIMS 1982] | 
| A. | 0.005 V/cm | 
| B. | 0.05 V/cm | 
| C. | R/16 | 
| D. | 0.2 V/cm | 
| Answer» B. 0.05 V/cm | |