We all know about DC concept,i.e +ve connected to +ve ,-ve connected to -ve.

We all know about DC concept,i.e +ve connected to +ve ,-ve
connected to -ve.
If landline phones lines are dc lines,then how it works even
if the polarties are interchanged??

Question Posted / shilly

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We all know about DC concept,i.e +ve connected to +ve ,-ve connected to -ve. If landline phones l..

Answer / ghotekar kk

it work normally

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