Physics-
General
Easy
Question
A potentiometer wire of 10 m length and 20Ohm resistance is connected in series with a resistance R Ohms and a battery of emf 2 V, negligible internal resistance. Potential gradient on the wire is 0.16 millivolt / centimeter then R is-ohms.
- 50
- 60
- 230
- 46.6
The correct answer is: 230
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