The resistances in left and right gap of a meter bridge are 
and 
respectively. When the resistance in the left gap is reduced to half its value, the balance point shifts by
A
to the right B
to the left C
to the right D
to the left
Text Solution
Verified by ExpertsThe correct answer is:
B
For meter bridge, 
Case (i)
?
So, 
or, 
Case (ii)
?
So, 
or 
Hence, the balance point shifts to the left by 
.
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