Question

State basic two properties of electric charge??

Answer 1

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⭕it is always conserved .

⭕it is quantised


⭕it is a scalar quantity .

⭕it is independent of the speed of the body.
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Answer 2

The various properties of electric charge include:

Additivity of charges
Charge is conserved
Quantization of charge
Additivity of charges

If a system contains two point charges q1 and q2, then the total charge of the system is obtained by simply adding q1 and q2, i.e., charges add up like real numbers.

If a system contains n number of charges q1, q2, q3, q4, - - - - - - ,qn, then the total charge of the system is q1 + q2 + q3 + q4 + - - - - - - - - + qn.

Charge is a scalar quantity; it has magnitude but no direction, similar to mass. However, there is one difference between charge and mass. Mass of a body is always positive whereas charge can be either positive or negative.

Let us take for example, the system containing four charges q1 = +2C, q2 = +3C, q3 = -3C, q4 = +4C, then the total charge of the system is

q = q1 + q2 + q3 + q4

= (+2) + (+3) + (-3) + (+4)

= +6C

Therefore, the total charge of the system is +6C and it is positively charged.

Charge is conserved

The law of conservation of charge states that charge cannot be created or destroyed. However, a charge can be transferred from one object to other.

Let us consider two objects, object A and object B. Object A has equal number of electrons and protons. So, it is electrically neutral. Similarly, object B has equal number of electrons and protons. So, it is also electrically neutral.