Current Electricity Charging Discharging Of Capacitors Question 309
Question: A galvanometer coil of resistance 50 W, show full deflection of $ 100\mu A $ . The shunt resistance to be added to the galvanometer, to work as an ammeter of range 10 mA is
[Pb PET 2000]
Options:
A) 5 W in parallel
B) 0.5 W in series
C) 5 W in series
D) 0.5 W in parallel
Show Answer
Answer:
Correct Answer: D
Solution:
$ S=( \frac{i _{g}}{i-i _{g}} ),\times G $
$ =\frac{100\times {{10}^{-6}}}{(10\times {{10}^{-3}}-100\times {{10}^{-6}})}\times 50 $ ยป $ 0.5,\Omega $ (in parallel)