Current Electricity Charging Discharging Of Capacitors Question 221
Question: A galvanometer of resistance $ 25,\Omega $ gives full scale deflection for a current of 10 milliampere, is to be changed into a voltmeter of range 100 V by connecting a resistance of ?R? in series with galvanometer. The value of resistance R in $ \Omega $ is
[MP PET 1994]
Options:
A) 10000
B) 10025
C) 975
D) 9975
Show Answer
Answer:
Correct Answer: D
Solution:
$ R=\frac{V}{i _{g}}-G=\frac{100}{10\times {{10}^{-3}}}-25=9975,\Omega $
BETA
