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)



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