With a resistance of 
in the left gap and a resistance of 
in the right gap of a meter bridge, the balance point is obtained at 
from the left end. In what way and to which resistance 
resistance to be connected to obtain the balance at 
from the left end?
A
in series with 
B
parallel to 
C
in series with 
D
parallel to 
Text Solution
Verified by ExpertsThe correct answer is:
C
The balanced condition of bridge is shown below in the first case
Then, 
To get the balance point at 50 cm from left end, the balanced condition becomes,
As, in series combination resistances are added so to get 
at left gap the 
resistance should be added in series with 
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