+20 In 1909 R.A Millikan measured charge of electron by oil drop experiment. An experimental arrangement of Millikan oil drop experiment is shown in Fig. The oil droplets enter into chamber because charge due to friction, and we suppose that these droplets have negative charge 'q' . When this negative charge enter b/w two parallel […]
+20 Electric potential b/w the two points is defined as "The amount of work done in moving a unit positive charge from one point to other against the electrical field" OR It is also defined as "The charge in potential energy per unit positive charge in electric field" Explanation: Let us consider the […]
+1-1 Statement: According to gauss's law" the electric flux through any charged surface is 1/Ԑ˳ times to the total charge enclosed in it" Mathematically it can be written as Φ = q/Ԑ˳ ——————–> (A) Proof: Let us consider an imaginery closed spherical surface of radius 'r' with point charge at its center. Such type of surface is called […]
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