Is it possible for a positive and a negative charge to attract each other?
Yes, they always attract.
Materials in which the electrons are bound very loosely to the nuclei and can move about freely within the material are referred to as
negative.
Sphere A carries a net positive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?
How can a negatively charged rod charge an electroscope positively?
by induction
quadruples.
Two charges are separated by a distance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual forces?
9F
zero
At twice the distance from a point charge, the strength of the electric field
is one-fourth its original value.
Is it possible to have a zero electric field value between a negative and positive charge along the line joining the two charges?
Electric field lines near positive point charges
No.