Two different materials, rubbed against each other acquired opposite charges when separated. This is an example of charging by? By: Sunday|Published on: Jan 24|Categories: Physics WAEC| 0 comments A. induction B. friction C. conduction D. convection Correct Answer: Option B B. friction Users Also Read These:Charging different prices for the same commodity is…Which of the following food substances would produce…The pricing approach that is based on what rival…The prices used in charging goods to the branches are?Which of the following indicates the correct…SEE ALSO The velocity ratio of an inclined plane, inclines at an angle θ to the horizontal can be expressed as?