When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes?
Question 1 Report
When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes?
Answer Details
When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes negatively charged.
This happens because cathode rays are made up of electrons, which are negatively charged particles. When these electrons collide with the electrode, they transfer their negative charge onto it, giving it a negative charge.
In a very simple way, think of it like this: if you rub a balloon on your hair, the balloon will become negatively charged because it has gained electrons from your hair. Similarly, when cathode rays collide with the electrode of an electrometer, the electrode becomes negatively charged because it has gained electrons from the cathode rays.
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