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The potential gradient along the length of a uniform wire is $10 Vm^{-1}$. B and C are two points at 30 cm and 60 cm on a metre scale fitted along the wire. The potential difference across B and C is

1 Answer

The potential difference across B and C is 3V
Hence A is the correct answer.
answered Jun 11, 2014 by meena.p
 

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