Q. I. If a system contains two point charges $q_{1}$ and $q_{2}$ , the total charge of the system is obtained simply by adding algebraically $q_{1}$ and $q_{2}$ , e.g., $(- 2$ units charge $) + (6$ units charge $) = 4$ units charge.
II. ( $- 2$ units charge $) + (6$ units charge $) = 8$ units charge.
III. Charge has magnitude but no direction, similar to mass.
IV. Mass of a body is always positive whereas a charge can be either positive or negative.
Incorrect statement is

889 154 Electric Charges and Fields Report Error

only I

24%

13%

57%

Solution: