Question

A positively charged body has
A. Excess of electrons
B. Deficiency of electrons
C. No change in number of electrons
D. None of these

Answer 1

Hint: Charge is nothing but the presence or absence of appropriate number of electrons. It is very difficult to separate positive charge from the nucleus. The charge acquired by a body, thus, depends upon the number of electrons present in that body.

Complete step-by-step answer:
A body fundamentally consists of a number of atoms. These atoms are further subdivided into electrons, protons and neutrons. A body is often said to be charged due to the presence of charges in them.
A positively charged body is said to contain positive charges while a negatively charged body is said to possess negative charges. But positive or negative charges can be fundamentally broken down into the deficiency or the excess of electrons in that body.
A body is said to be neutral if each of its atoms contain as many number of protons as that of electrons. If a body contains more electrons than that of the protons, then that body is said to have a negative charge. On the contrary, if a body contains more number of protons than those of the number of electrons content of the body, it is said to have a positive charge.
Also, we know that the protons are present in the nucleus of an atom and are very difficult to separate. Hence, everything comes down to the presence of excess electrons or deficiency of electrons.
Thus, a positively charged body has a deficiency of electrons.

Note: The deficiency of electrons in a body always leads to the creation of positive charge within the body. This positive charge is always attracted by a negatively charged body and at the same time, repelled by another positively charged body. Deficiency of electrons is also referred to as the presence of holes.