Physics, 21.04.2021 23:30, omar2334

Why are antennas needed for radio television and cell phone transmission A) without a long antenna, the signal will not travel very far
b) the antenna allows you to direct your signal toward the intended target
c )the sound waves require a meatal surface to bounce off
d) EM waves are created by oscillating electrons within the antenna

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Why are antennas needed for radio television and cell phone transmission A) without a long antenna...