In a meter bridge experiment with unknown resistance 
in the left gap and a known resistance of 
in right gap, null point is obtained at 
from left. If the unknown resistance 
is shunted by an equal resistance, the value of the known resistance in the right gap in order to get the null point at the same place, is :-
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Given 
… ..(i)
In second case 
Equating eq.(i) and (ii), we have
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