Current Electricity Charging Discharging Of Capacitors Question 201
Question: When a $ 12,\Omega $ resistor is connected with a moving coil galvanometer then its deflection reduces from 50 divisions to 10 divisions. The resistance of the galvanometer is
[CPMT 2002; DPMT 2003]
Options:
A) $ 24,\Omega $
B) $ 36,\Omega $
C) $ 48,\Omega $
D) $ 60,\Omega $
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Answer:
Correct Answer: C
Solution:
$ i _{g}=\frac{iS}{S+G} $
Therefore $ 10=\frac{50\times 12}{12+G} $
Therefore $ 12+G=60 $
Therefore $ G=48\Omega $