Which one of the following is likely to have the largest resistance?

Options

A. a moving coil galvanometer
B. an ammeter of range 0 to 100 A
C. a copper wire of length 1 m and diameter 2 mm
D. a voltmetr of range 0 to 10 V

Answer

D

Explanation

Foe full scale deflection P.D across the galvanometer `=500 xx 20 xx 10^(-3)=10V therefore` It can be used as a voltmeter of range 0 to 10V.