An electrified stick was brought to the negatively charged electrometer and its rod was touched. In this case, the angle of deflection of the arrow increased. What charge was on the stick?
Either there was a negative charge on the stick, or a very large positive one. In the first case, the negative charge on the rod increased the charge on the rod. In the second case, the positive charge of the rod will compensate for the negative charge of the rod and give it a positive one.
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