Question

For which of the following meters, converted from identical galvanometers, the resistance of the converted meter is largest?

• A. Voltmeter of range 0.5 V
• B. Ammeter of range 1A
• C. Voltmeter of range 1.0 V
• D. Ammeter of range 10 A

Answer 1

Answer: (C)

Voltmeter of range 1.0 V

Answer 2

R _Voltmeter > R _Ammeter

& In voltmeter for higher range we use higher series resistance so longest resistance is for voltmeter of 1V range.