Question

In the following circuit, Which device can be connected is place of x y to increase or decrease the
brightness of the bulb. ? Give reason for your answer. ​

Answer 1

Answer:variable resistance or rheostat

Explanation:because

V=IR

R=V/I

R is inversely proportional to current and hence it will change the current flowing through the conductor increasing and decreasing the brightness of the bulb

Answer 2

Answer:

rheostat is your answer frnd