Q. The current sensitivity of a galvanometer increases by 20%. If its resistance also increases by 25%, the voltage sensitivity will
(i ) decrease by 1%
(ii) increased by 5%
(iii) increased by 10%
(iv) decrease by 4%
Answer: (iv) decrease by 4%
Given,
![](https://www.schoollearners.com/wp-content/uploads/2021/10/Q38.jpg)
![](https://www.schoollearners.com/wp-content/uploads/2021/10/Q38a.jpg)