#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find.Demystified Videos In Demystified, Britannica has all the answers to your burning questions.Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions.Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives.Substituting numerical values and evaluating Q:Įxample 5): Determine the electric current in an electric circuit where the total electric charge is 6 C over 5 seconds. We can find the number of atoms in 1.00 kg of carbon by setting up a proportion relating Avogadro’s number N A, the mass of carbon, and the molecular mass of carbon to n c. Solution: (a) We can find the number of coulombs of positive charge there are in 1.00 kg of carbon from Q= 6n ce, where n c is the number of atoms in 1.00 kg of carbon and the factor of 6 is present to account for the presence of 6 protons in each atom. n= 1, 2, 3.Įxample 4): What is the total charge of all of the protons in 1.00 kg of carbon? e = 1.6 X 10 -19 C) on an electron possible? So q = ☑ X 1.6 X 10 -19 CĮxample (2) : If n=2, what will be the value of electric charge? (Given e =1.6 X 10 -19 C)Įxample (3): Is charge less than the charge (i.e. Thus charges are produced in equal and unlike pairs.Įxample (1) : What is the possible value of electric charge?Īs we know that, electric charge can exist only as an integral multiple of charge on an electron (-e) i.e. (iii) When we rub a glass rod with a piece of silk, the positive charge acquired by the glass rod is equal to negative charge acquired by the silk piece. Every atom is electrically neutral as it contains as many electrons as the number of protons in it. (ii) Total charge on a body is equal to the algebraic sum of all the charges present on it. (i) On an isolated system, total electric charge always remains constant. (iii) Charge less than the charge on an electron ( i.e. (ii) The Possible values of electric charge are q = ± 1e ± 2e ± 3e. (i) Electric charge can exist only as an integral multiple of charge on an electron (-e) i.e. Two important properties of charge are Quantization and Conservation.Charge on electron is -1.602 * 10 -19 C and charge on proton is positive of this value.1 Coulomb is the charge flowing through the wire in 1 second if the electric current in it is 1A. SI unit of charge is Coulomb written as C.Charge on a system can be measured by comparing it with the charge on a standard body.Importance of electric forces is that it encompasses almost each and every field associated with our life being it matter made up of atoms or molecules in which electric charges are exactly balanced or adhesive forces of glue associated with surface tension, all are electric in nature.Assignment of negative charge on electron and positive charge on proton is purely conventional it does not mean that charge on electron is less than that on proton.e., both set repel each other but electric force between an electron and proton placed at same distance apart is not repulsive but attractive in nature. Electric force between two electrons is same as electric force between two protons kept at same distance apart i.Actually nucleus is made of protons and neutrons but neutrons are uncharged particles. Electrons are negatively charged particles and protons, of which nucleus is made of, are positively charged particles.Electric charge is the property responsible for electric forces which acts between nucleus and electron to bind the atom together.
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