If two electrically charged objects repel one another, which of the statements must be true?
a.
one object has more electrons and the other has more protons.
b.
the objects do not have strong electrical fields.
c.
the two objects have the same electric charge.
d.
electrons will flow from one object to the other when they touch each other.

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.