Current Electricity Charging Discharging Of Capacitors Question 314
Question: A moving coil galvanometer of resistance 100W is used as an ammeter using a resistance 0.1W. The maximum deflection current in the galvanometer is 100mA. Find the minimum current in the circuit so that the ammeter shows maximum deflection
[IIT-JEE (Screening) 2005]
Options:
A) 100.1 mA
B) 1000.1 mA
C) 10.01 mA
D) 1.01 mA
Show Answer
Answer:
Correct Answer: A
Solution:
$ I _{G}\times G=( I-I _{G} ),S $
Therefore I = $ ( 1+\frac{G}{S} )I _{G} $
Therefore I = 100.1 mA
BETA
