Question
Question: Q.9 If two ammeters X and Y require 40 mA and 50 mA respectively to give same full scale deflection,...
Q.9 If two ammeters X and Y require 40 mA and 50 mA respectively to give same full scale deflection, then :
A
Y is more sensitive
B
X is more sensitive
C
Both X and Y can be equally sensitive
D
It would not be possible to assess the sensitivity on the basis of the given data
Answer
X is more sensitive
Explanation
Solution
For an ammeter, sensitivity is defined as the deflection per unit current, i.e., an ammeter requiring the least current for full-scale deflection is more sensitive. Here, ammeter X requires 40 mA (less current) compared to ammeter Y which needs 50 mA. Hence, X is more sensitive.