An instrument has sensitivity of 1000 ohm/volt. On the 100

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An instrument has sensitivity of 1000 ohm/volt. On the 100 volt scale. This instrument will have internal resistance of:

1. 10 ohms
2. 10,000 ohms
3. 1,00,000 ohms
4. 1,000 ohms

Correct Option: C

The sensitivity of voltmeter is given by relation Sensitivity,

S =	1	ohms/volt
	I_fsd

where, I_fsd = full scale current
S = R/V
or
R = SV
= 1000 × 100 = 1,00,000 ohms