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:The prices used in charging goods to the branches are?The cost method of charging goods to branch is used where?Charging different prices for the same commodity is…Two different materials, rubbed against each other…If an ebonite rod is rubbed with fur?SEE ALSO A body moving in a circle at constant speed has _________. Which of the statements above are correct?