Question

A technique by which the vertical and horizontal scan frequency of video signal can be changed for different purpose and applications is called

Answer 1

Answer:

hope it help

Explanation:

Electro chemistry deals with

a) Use of electrical energy for the dissociation of chemical compounds (electrolysis)

b) Use of chemical reactions for the product ion of electrical energy (electro chemical cells

c) Use of electrical energy in the study and the preparation of chemical substances.