Friday
February 27, 2015

Homework Help: physics

Posted by sana on Thursday, October 25, 2007 at 2:43pm.

a telephone engineer feeds a sound signal into the mouthpiece of a telephone.As part of the tests he is making he incresesthe frequency of the sound.HOW WILL THIS EFFECT TYE ELECTICAL SIGNAL PASSING ALONG THE TELEPHONE WIRE?

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