Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Two resistors 
and 
are connected in the gaps of bridge as shown in figure. The null point is obtained with the contact of jockey at some point on wire XY . When an unknown resistor is connected in parallel with 
resistor, the null point is shifted by 22.5 cm toward Y . The resistance of unknown resistor is 
.
Text Solution
Verified by ExpertsThe correct answer is:
B
Initially, 
Now when ' 
' connected in parallel
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