Question

Write the properties of charge?​

Answer 1

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$\sf{\underline{\underline{\red{\dag{Properties\:of\:Charge}}}}}$

• Like Charges repel each other

• Unlike Charges attract each other

• Quantisation of charge ( q = ne )

• Charge is an additive property

• Charge can neither be created nor be destroyed.

$\sf{\underline{\blue{Extra\:points\::-}}}$

★ Charge is denoted by q

★ Unit of charge is Coulomb (C)

★ Flow of charges is known as Current .

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Answer 2

Answer:

• 1. Like charges repel while unlike charges attract test of electrification is repulsion and not attraction as attraction may also take place between a charged and an uncharged body and also between two oppositely charged bodies.
• Charge is a scalar.
• Charge is transferable: When a charged body is put in contact with an uncharged body. the uncharged body becomes charged due to transfer of electrons from one body to the other. If the charged body is positive it will draw some eiectrons from the uncharged body and if it is negative then it will transfer some of its excess electrons to the uncharged body.

Charge is always associated with mass: Charge cannot exist without mass though mass can exist without charge. Example: The particles such as photon or neutrino which have zero rest mass do not have a charge.

• Charge is quantized: When a physical quantity has only discrete values the quantity is said to be quantized.
• Charge is conserved: In an isolated system the total charge does not change with time, though individual charge may change. Charge can neither be created nor destroyed. Equal quantities of positive and negative charges can appear or disappear simultaneously, Conservation of charge holds good in all types of reactions example :chemical, nuclear or decay.

Charge is invariant: This means that charge is independent of frame of reference, example:charge on a body does not change with speed. The charge density or mass of a body depends.On speed and increases with increase in speed.

Accelerated charges radiate energy: Electromagnetic theory shows that particle at rest produces only electric field. If the charged particle is accelerated, it produces electric and magnetic fields but does not radiate energy. In accelerated motion charge produce electric and magnetic fields and also. radiate energy in the form of electromagnetic waves.