Electric charge and fields

Ncert 12 physics

Frictional electricity

It is a type of electric charge generated by the contact and separation of two surfaces, leading to the transfer of electrons. This phenomenon occurs when materials interact, causing one to become positively charged and the other negatively charged.

Basic properties of charges

Additivity of charges,charges are conserved,total charges on an isolated system will always remain constant

Quantization of charges

charge exists in discrete amounts, typically as integral multiples of the elementary charge (e). Q=±ne

Electric charges in 1c

6.242 x 10^{18} elementary charges.