Class 10 Science online notes-Electricity Class 10 Science - Electric charges It has been scientifically proven that the electric charges are of two types- positive charges and negative charges. The charge acquired by a glass rod is called positive charge and the charge acquired by an Ebonite rod is called negative charge. Let’s discuss the property for electric charges are Opposite charges attract each other. Similar charges repel each other. The SI unit of electric charge is Coulomb which is denoted by the letter C. All the matter around positively charged particles called protons and negatively charged particles called electrons. A proton possesses a positive charge of 1.6 X Whereas electron possesses a negative charge 1.6 X . Conductors and Insulators A conductor is a substance through which electricity can flow. Eg:- Silver, copper, aluminum, etc. Insulators are the substances through which electricity cannot flow are called insulators. Eg:- Glass,Ebon
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