The theory of Maxwell and Hertz's experiments We know that there are natural electromagnetic waves, electromagnetic waves and is caused by the movement of electric charge that has been accelerated. When you connect the AC power source with the antenna in a vertical. Electric charge in the air to move back in with the acceleration in vertical, because the battery is capable of speeds up to radiation. Thus causing the electromagnetic waves spread out from the antenna in all directions except the North, where one is in a straight line to the antenna. The occurrence of electromagnetic wave in the direction perpendicular to the antenna diagram in the figure.
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