Published by:
CGP EDU Academic Team
Published on: September 13, 2026
A meter bridge with two resistances 
and 
as shown in figure was balanced (null point) at 40 cm from the point 
. The null point changed to 50 cm from the point 
, when 
resistance is connected in parallel to 
. The values of resistances 
and 
are 
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Initial balance at 
…… . (i)
With 
parallel to 
, null point at 50 cm:
……… (ii)
From (i): 
.
Substituting in (ii): 
.
.
.
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