Really? Then why are you asking the question?klackeos said:
No problem. The Homework Forums should be used for all homework or textbook-style exercises. Your question falls under this category since it is a standard undergraduate exercise. For more general questions you may use the scientific forums.klackeos said:
An electric field is a physical quantity that describes the influence that a charged object exerts on other charged objects in its surrounding space. It is represented by a vector that indicates the direction and strength of the force that a charged object would experience if placed in that field.
The electric field between two separated metallic balls can be calculated using the equation E = kQ/r^2, where E is the electric field, k is the Coulomb's constant, Q is the charge on one of the balls, and r is the distance between the two balls. This equation assumes that the balls are point charges and are not moving.
The electric field between two separated metallic balls is affected by the distance between the balls, the magnitude of the charges on the balls, and the medium between the balls. The electric field is stronger when the balls are closer together, when the charges on the balls are larger, and when the medium between the balls has a lower permittivity.
Yes, the electric field between two separated metallic balls can be negative. This would occur if the charges on the balls are of opposite signs and the direction of the electric field is towards the negative charge. However, the magnitude of the electric field would still be positive.
The electric field between two separated metallic balls has various practical applications, including in electrostatic precipitators for air pollution control, in Van de Graaff generators for generating high voltages, and in capacitors for storing energy. It is also used in the study of electromagnetism and in the design of electronic devices.