The field lines extend from the positive to negative charge.
Force between them is attractive.
Explanation:The field lines of the electric charges extend from the positive to negative side charge. These are the parallel lines and they never cross each other when tho charges are kept infinitesimal distance apart.The distance between the two charges, x = 10 cm The force between the two charged balls is attractive.It is directly proportional to the product of their charges and inversely proportional to the magnitude of the distance between them.It is given by the formula
CSince distance between the two charges, x = 10 cm, the force between the charges is reduced by the factor 0.01 m² in SI units.
that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.
hope this ! : )
the answer is a. hope this .