Question

A negatively charged body has ................. of electrons compared to the number of protons in respective atom.

• A. rubbing
• B. excesss
• C. positively
• D. induction

Answer 1

Answer: (B)

excesss

Negative electrification is due to the excess of electrons (compared to the normal number of electrons in a neutral atom).For example, on rubbing a glass rod with silk, the electrons from the glass rod get transferred to the silk. The silk now has an excess of electrons and so is negatively-charged. On the other hand, the glass rod is deficient in electrons and hence is positively-charged.
Hence, a negatively charged body has excess of electrons.