Question

Why are the particles attracted to the metal tube?

Answer 1

Answer:

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Explanation:

The increased random heat motion of the filament knocks electrons out of the surface of the filament, into the evacuated space of the tube. Since the electrons have a negative charge, they are repelled by the negative cathode and attracted to the positive anode. They travel in straight lines through the empty tube.

Answer 2

Answer:

Explanation: The increased random heat motion of the filament knocks electrons out of the surface of the filament, into the evacuated space of the tube. Since the electrons have a negative charge, they are repelled by the negative cathode and attracted to the positive anode.