Question

a galavometer has a resistance 20ohm and range 10mA.show how it could be coverted in to an ammeter to read up to 1A​

Answer 1

Explanation:

using formula,

I/ig = 1+(G/S) where, I is ammeter full current, ig is galvanometer full current rating, G is galvanometer res. and S is shunt(parallel) res. to be connected to G.

put the values and ans will be

S=find out urself