A positively charged insulating rod is brought close to an object that is suspended by a string. If the object is attracted to the rod we can conclude:
a) The object is positively charged
b) The object is negatively charged
c) The object is an uncharged insulator
d) The object is an uncharged conductor
e) Both B and D are possible
- billrussell42Lv 71 month ago
A is false, they would be repelled
B is true
C is false
D is true, the positive charged rod would repel +charges on the conductor to the back of it (that is, attract negative charges). leaving negative charge on the nearest surface, and they would be attracted.
however, C would be true to some extent, depending on the materials. No material is a perfect insulator.