A voltmeter has resistance of 2000 Ω and it can measure upto 2V. If we want to increase its range to 10 V then the required resistance in series will be
2000 Ω
4000 Ω
6000 Ω
8000 Ω
Here, n=102 =5∴ R=n−1G= 5−12000=8000 Ω