00 A potentiometer wire of length 100 cm has a resistance of

Last updated: 6/10/2023

00 A potentiometer wire of length 100 cm has a resistance of 10 2 It is connected in series with a resistance and a cell of emf 2 V and of negligible internal resistance A source of emf 10mVis balanced against a length of 40 cm of the potentiometer wire What is the value of external resistance a 790 52 b 890 2 c 990 2 d 1090 2 4