A battery of $6\, volts$ is connected to the terminals of a three meter long wire of uniform thickness and resistance of the order of $100\,\Omega $. The difference of potential between two points separated by $50\,cm$ on the wire will be .......... $V$
A$1$
B$1.5$
C$2$
D$3$
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A$1$
a (a) Here same current is passing throughout the length of the wire, hence $V \propto R \propto l$
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