Current Electricity Charging Discharging Of Capacitors Question 263
Question: A galvanometer with a resistance of 12 W gives full scale deflection when a current of 3 mA is passed. It is required to convert it into a voltmeter which can read up to 18 V. the resistance to be connected is
[Pb. PMT 2000]
Options:
A) 6000 W
B) 5988 W
C) 5000 W
D) 4988 W
Show Answer
Answer:
Correct Answer: B
Solution:
$ R=\frac{V}{i _{g}}-G=\frac{18}{3\times {{10}^{-3}}}-12=5988,\Omega $