Two students are trying to decide whether or not Object A is charged. They perform the following two
tests:
Test 1: They bring Object A near a positively charged tape and observe attraction.
Test 2: They bring Object A near a negatively charged tape and observe attraction.
These two tests lead to the conclusion that Object A is
a.
charged negatively
b. charged positively
c. electrically neutral
d. charged, but with an unknown type of charge