Magnetic Effects Of Current Question 221
Question: Two galvanometers A and B require 3mA and 5mA respectively to produce the same deflection of 10 divisions. Then [Kerala PET 2001]
Options:
A) A is more sensitive than B
B) B is more sensitive than A
C) A and B are equally sensitive
D) Sensitiveness of B is 5/3 times that of A
Show Answer
Answer:
Correct Answer: A
Solution:
Sensitivity (S) = $ \frac{\theta }{i} $
Þ $ \frac{S_{A}}{S_{B}}=\frac{i_{B}}{i_{A}}=\frac{5}{3}\Rightarrow S_{A}>S_{B} $
BETA
