A voltmeter of range 2 V and resistance `300 Omega` cannot be converted into ammeter of range

Options

A. 1A
B. 1 mA
C. 100 mA
D. 10 mA

Answer

B

Explanation

As `I_(s) = (2)/(300) A`
`I_(s) = (2)/(300) xx 1000` mA
`= (20)/(3) mA rArr I_(s) = 6.67` mA
It can measure 6.67 mA of current passes through it. So it can measure up to 6.67 mA but can not measure 1mA.