Theories of Electricity:
1. Two fluid theories
2. One fluid theory
3. Faraday’s theory
4. Lorentz’s theory
5. Modern theory
Faraday’s Theory: according to this theory, charges produced by static electricity are moved by electron cell. As a result current electricity is obtained.
Modern Theory: At Present, modern theory is accepted everywhere, according to this theory every atom has a positively charged nucleus and negatively charged electron. Proton & electron are equal in neutral condition. If number of electrons increase the atom becomes negatively charged due to decrease of electrons. Electrons flow from higher level portion to lower level until the energy levels higher level portion to lower level until the energy levels same. Thus charge transfer is occurred by electron transfer
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