Question

Which principle is applied in electric screen?​

Answer 1

Answer:

$\huge \underline \mathfrak \red{Answer}$

Explanation:

A projection screen is an installation consisting of a surface and a support structure used for displaying a projected image for the view of an audience. Projection screens may be permanently installed, as in a movie theater; painted on the wall;[1] or portable with tripod or floor rising models as in a conference room or other non-dedicated viewing space. Another popular type of portable screens are inflatable screens for outdoor movie screening (open air cinema).

Answer 2

Answer:

A place can be separated by a system that no external charge can affect that place, but that system is called electric screen.