Current Electricity 4 Question 28
28. $R _1, R _2, R _3$ are different values of $R$. $A, B, C$ are the null points obtained corresponding to $R _1, R _2$ and $R _3$ respectively. For which resistor, the value of $X$ will be the most accurate and why?
$(2005,2 M)$
Show Answer
Solution:
- Slide wire bridge is most sensitive when the resistance of all the four arms of bridge is same.
Hence, $B$ is the most accurate answer.
