Question

suppose there exists a third type of charge in addition to the two types we associate with glass and plastic .Call this third Type X charge. what experiment could you use to test whether an object has X charge? State clearly how the outcome of the experiment would be interpreted.

Answer 1

Experiment with a electroscope can detect the charge X.

In electroscope the foils are used. When a charged object is brought near the metal plate connected to the foils, the charge moves through the metal to the foils and both foil have same charge on the surface and so repel each other and move apart. This happens since a charged object is brought near and uncharged object and so the charged object induce some charge on the surface of uncharged material.

If X charged object is brought near the metal plate, and foils move apart will indicate that object has the charge X.

I hope this helps!