Current Electricity Charging Discharging Of Capacitors Question 220
Question: The current flowing through a coil of resistance 900 ohms is to be reduced by 90%. What value of shunt should be connected across the coil
[Roorkee 1992]
Options:
A) $ 90,\Omega $
B) $ 100,\Omega $
C) $ 9,\Omega $
D) $ 10,\Omega $
Show Answer
Answer:
Correct Answer: B
Solution:
Q $ i _{g}=(100-90)% $ of $ i=\frac{i}{10} $
Therefore Required shunt $ S=\frac{G}{(n-1)}=\frac{900}{(10-1)}=100,\Omega $