Question

An electroscope is given a positive charge, causing its foil leaves to separate. When an object is brought near the top plate of the electroscope, the foils separate even further. We could conclude

(A) that the object is positively charged.

(B) that the object is electrically neutral.

(C) that the object is negatively charged.

(D) only that the object is charged.

(E) only that the object is uncharged.

Answer 1

The correct option is: (A) that the object is positively charged.

Explanation:

If the leaves are positive, further separation means they are becoming more positive, which implies electrons are leaving the leaves, attracted to the top plate of the electroscope. This will occur if the object is positively charged.