Question

A milli voltmeter of 25 milli volt range is to be converted into an ammeter of 25 ampere range'

Answer 1

ig =25mv/G ampere   where G is resistance of meter and shunt is required for into ampere range

s=igG/i-ig          then s=25 Mv /25=  0.001 ohm

Answer 2

Answer:

The voltmeter range after the conversion is 0.001 ohm.

Solution:

To convert the voltmeter range that is given into ammeter range we need to apply a certain formula given as

                              S $=\frac{V g}{I-I g}$

Now here in this case we can neglect Ig, neglecting and applying the values in formula we will get S$=\frac{V g}{I}$

                            $= \frac{25 \times 10^{-3}}{25}$

                                     = 0.001 ohm

Hence, the voltmeter range after the conversion is 0.001 ohm.