The most common method of charge generation is triboelectric charging. Whenever materials are brought into close contact, a charge exchange may occur between the surfaces of the two materials. The magnitude of this charge exchange will depend on a number of factors, but the result is two oppositely charged objects when the materials are separated. The second common method of creating static charge is known as inductive charging. This occurs when a charge is “induced” on an isolated conductive object that is brought into the field created by the charge on another object.