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In the quest to study the properties of matter, some of the natural observations led to the conclusion that electric charge is also a fundamental property of the mass. Every material particle that surrounds us has a charge on it. But, this property is not visible in the bulk matter usually. This is because every matter consists of an equal amount of positive and negative charges. So, they become electrically neutral but they are not chargeless. If we rub a plastic cover of our pen on our hair and take it near to a piece of paper, the paper is attracted towards the pen. What makes the plastic attract the piece of paper? The answer to this question is the interaction between charges and is proof of the existence of charge in any matter. There are two types of charges: positive charge and negative charge. Fundamentally, a positive charge is carried by the proton and a negative charge is carried by the electron of an atom. An electron can be transferred from one body to another body easily because of their low binding capacity in an atom. Likewise, electrons can be deposited on a matter and can conduct through a conductor. Also, the beam of electrons can be produced experimentally.