Question

7. Electronic relays and switching devices were used in
(A) First generation
(B) Second generation
(C) Third generation
(D) Fourth generation​

Answer 1

Answer:

(C) Third generation

I hope it will help you

Answer 2

Explanation:

Among the various options given in question statement the correct option is the third one.

Third generation in industrial revolution refers to electronic relays, where diodes, IGBT's were used and it gave a boom to semi conductor technology. At that time, all sorts of electronics were shifted to this technology because of its smaller size, less energy consumption and better overall performance