An ebonite rod is held in hand can be charged by rubbing with flannel but a copper rod cannot be charged like this. Explain the reason.
a) Ebonite has a higher electron affinity compared to copper.
b) Ebonite has a higher atomic number compared to copper.
c) Copper has a higher electron affinity compared to ebonite.
d) Copper has a higher atomic number compared to ebonite.
