JEE Main 2021 + NEETMedium
Q.In a Wheatstone bridge, all four resistances are equal to R. The bridge is balanced. If one resistance is changed to 2R, the bridge is unbalanced. This shows
a
Kirchhoff's laws are valid
b
resistances are equal
c
bridge is sensitive
d
none
Correct Answer: Option A
The correct solution involves applying the fundamental concept to derive the final value step by step...