When charging two objects by rubbing them together
A)Neither may be a conductor.
B)They must be made of different material.
C)They will sometimes end up with both being positively charged.
D)The heat produced by friction is a necessary part of this process.

Question

Quizplus · Accepted Answer

When two objects are rubbed together, electrons transfer between them, creating a charge imbalance. This only occurs when the objects are made of different materials with different electron affinities. If the objects are made of the same material or if they are both conductors, the charge imbalance will not occur. Heat production is not a necessary part of the process but may be a side effect of friction. Both objects can be positively charged or negatively charged depending on the number of electrons transferred.

When Charging Two Objects by Rubbing Them Together