Question

if an object made of substance A is rubbed with an object made of substance B then A becomes positively charged and B becomes negatively charged . if however an object made of substance A is rubbed against an object made of substance C then A becomes negatively charged . what will happen if an object made of substance B is rubbed against an object made of substance C

Answer 1

As we can see from the above illustrations that when A is rubbed with B , A becomes positively charge and B becomes negatively charge, similarly when A is rubbed against C , A becomes negative and C becomes positive. From the above 2 illustrations we can conclude that if B is rubbed against C.

C becomes positively charged and B becomes negatively charged