A) shifts towards right
B) shifts towards left
C) remains unchanged
D) remains at zero
Correct Answer: A
Solution :
As the resistance of metal increases on increasing the temperature, so resistance of metal conductor in left arm will increase on heating. For meter bridge \[\frac{{{R}_{1}}}{{{R}_{2}}}=\frac{l}{100-l}\] As \[{{R}_{1}}\] increases I also increases. Hence, balancing point shifts towards right.
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