After friction between the fur and the plastic ruler, take the plastic ruler and gradually move it
Fantastic news! We've Found the answer you've been seeking!
Question:
After friction between the fur and the plastic ruler, take the plastic ruler and gradually move it closer to the gold foil electroscope with a small amount of negative charge, and finally make direct contact. How does the opening angle of the gold foil change from the approach of the plastic ruler to the contact?
Related Book For
Posted Date: