A milli voltmeter of 25 milli volt range is to be converted into an ammeter of 25 ampere range. The value (in ohm) of necessary shunt will be

Options

A. `0.0001`
B. `0.01`
C. 1
D. `0.05`

Answer

A

Explanation

Voltage range of given milli
voltameter is `V=25 mV`. This milli voltmeter of range 25 A, So I=25 A. If the required shunt is `V=IR`. Hence `R=(25 mV)/(25 A) implies V =(25 xx 10^(-3))/25=10^(-3)=0.0001` ohm