Advertisements
Advertisements
Question
A galvanometer of resistance 100 Ω requires 10 µA current for full scale deflection. Now a resistance of 1 Ω is connected to convert it into an ammeter. The minimum current required to obtain full scale deflection is ______.
Options
101 mA
11.0 mA
10.1 mA
1.01 mA
MCQ
Fill in the Blanks
Advertisements
Solution
A galvanometer of resistance 100 Ω requires 10 µA current for full scale deflection. Now a resistance of 1 Ω is connected to convert it into an ammeter. The minimum current required to obtain full scale deflection is 1.01 mA.
Explanation:
I = `(("G + S")/"S") "I"_"g"`
`= ((100 + 1)/1) xx 10 mu"A"`
= 1010 µA
= 1.01 mA
shaalaa.com
Is there an error in this question or solution?
