Question

FO
A MCG has a current sensitivity of 5 div/mA and a voltage sensitivity of 2 div/mV and a FSD of
200div. It will work as
(1) an ammeter of range 40A
(2) an voltmeter of range 0.17
(3) an ammeter of range 4mA
(4) an voltmeter of range 100v

plss plss answer me fast​

Answer 1

Answer: Current sensitivity

I  

g

​  

=  

K

NBA

​  

=  

mA

5div

​  

=5000  

A

div

​  

 

Voltage sensitivity v  

s

​  

=  

KR

NBA

​  

=20  

v

div

​  

 

⇒  

v  

s

​  

 

I  

g

​  

 

​  

=R

⇒R=  

20

5000

​  

=250Ω

Option 1 is correct.