Question

Which value of charge is not possible and why?
A.1.6×10^-18 C
B.3.2×10^-17C
C.3.2×10^-21C
D.1.6×10^-22C​

Answer 1

Given:

4 charges have been provided as follows:

A.1.6×10^-18 C

B.3.2×10^-17C

C.3.2×10^-21C

D.1.6×10^-22C

To find:

Which charges are not possible ?

Calculation:

• First of all, smallest magnitude of charge possible on an object is the charge of one electron.

• So, the smallest possible charge is :

$\therefore \: |e| = 1.6 \times {10}^{ - 19} \: C$

• Now, the amount of charge on a body is usually calculated in the form of multiples of this smallest possible charge.

• However, we will never be able to achieve a charge which is smaller than the charge of an electron.

Hence , option C and D are not possible because they are smaller than the charge of one electron.

Answer 2

Explanation:

option C and D is the correct answer