Question

A device used to change the resistance in an electric circuit is..
a)ammeter
b)rheostat
c)galvanometer
d)voltmeter​

Answer 1

Hey mate,

Here is your answer:

The device used to change the resistance in an electric circuit is Rheostat.

Hope it helps you :)

Answer 2

Answer:

rheostat

Explanation:

option b is correct

Hope it's helpful for you