gI've me the properties of charge in detail?
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The charge is a scalar quantity as it has only magnitude and no direction. The charge is just as other fundamental properties of the system like mass. The only difference between mass and charge is that charge is both positive and negative, while mass is always positive.
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Electric Charge and its specific properties
- Charge is the fundamental property associated with matter due to which it produces and experiences electric and magnetic effects.
- There are two types of charge : positive and negative. This categorization has been made just to distinguish the nature of interaction.
- SI unit of charge is coulomb (abbreviated as C).
- Charge is a scalar quantity which means it can be added or subtracted algebraically.
- Charge resides on matter i.e. mass. Alternatively, without mass the existence of charge is not possible though mass can exist without charge. Thus, presence of charge itself is a convincing proof of existence of mass. This also follows that in the process of charging or electron emissions mass of the body changes.
- Charge is transferable. If we put a charged body in contact with another body, then charge can be transferred to another body.
- Total charge of an isolated system is always conserved i.e. charge can neither be created nor destroyed. This holds good in all types of reactions either chemical or nuclear.
- Unlike mass, total charge of a body does not depend on its speed i.e. charge is invariant. On the other hand, mass of a body is dependent on its speed (Greater the speed, greater is the mass) according to Einstein’s relativity theory.
- Like charges repel while unlike attract.
- Accelerated charge radiates energy in the form of electromagnetic waves.
- Charge is quantized. The quantization of charge is the property by virtue of which all free charges are integral multiple of a basic unit of charge represented by e (where e = ± 1.6 × 10⁻¹⁹ C). This value is the minimum possible quantity of charge which can exist individually and hence is known as the quantum of charge.
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