Point charges]q1=− 4.80 nC and q2=+ 4.80 nC are separated by distance 4.00 mm , forming an electric dipole.
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Point charges]q1=− 4.80 nC and q2=+ 4.80 nC are separated by distance 4.00 mm , forming an electric dipole.
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- how many electrons must be removed from a neutral , isolated conducting sphere to give it a positive charge of 1.0 x 10 ^6 C.Two metal spheres, each of radius 2.6 cm, have a center-to-center separation of 2.8 m. Sphere 1 has a charge of +1.2 × 10-8 C; sphere 2 has a charge of -3.3 x 10-8 C. Assume that the separation is large enough for us to assume that the charge on each sphere is uniformly distributed (the spheres do not affect each other). With V= 0 at infinity, calculate in volts (a) the potential at the point halfway between their centers and the potential on the surface of (b) sphere 1 and (c) sphere 2. (a) Number (b) Number i (c) Number i Units Units Unitsa) How many electrons are needed to form a charge of -2.00nc (b) How many electrons must be removed from a neutral object to leave a net charge of -0.500c ?
- a 50g ball of copper has a net charge of 1 x 10^-6 C what fraction of coppers electrons have been removed?104. In copper there is approximately one free electron for each atom. A copper coin has a mass of m=3 g. (k=9.10° N.m²/C², NA=6.02.10²3 mol-¹, e--1.6.10-¹9 C, M-63.5 g/mol) 1) What percentage of the free charge would have to be extracted from the currency for it to acquire a charge of q=15 UC? a)2,69.107 % b)2,99.107 % c)3,29.10.7 % d)3,59.10-7% e)3,89.107 % II) What would be the force of repulsion between two coins that have this charge, if they were separated by a distance of d = 25 cm? (Assume currency as a point charge) (a)30.4 N b)32.4 N (c)34.4 N (d)36.4 N (e)38.4 NTwo uncharged spheres are separated by 3.50 m. If 1.40 ✕ 1012 electrons are removed from one sphere and placed on the other, determine the magnitude of the Coulomb force (in N) on one of the spheres, treating the spheres as point charges.
- (a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 13.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) Imagine adding electrons to the pin until the negative charge has the very large value 1.00 mC. How many electrons are added for every 109 electrons already present?Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons.(a) How many electrons are there in 3.56 liters of water? (A liter is 1.00 10-3 m3)electrons(b) What is the net charge of all these electrons?CPoint charges 91 distance 3.70 mm, forming an electric dipole. == 4.20 nC and q2 = + 4.20 nC are separated by
- Three point charges are located as shown in the figure. q1 =-9 x 10-12 [C) and d =5 [cm] 92 =1x 10-12 (C] and d; = 1 [cm] 93 =-4 x 10-2 (C) and dy = 7 [cm] 93 d3 a. n Jami the t 1 at the- 92 INA d, d, de electri nyutuae or tne eiectrio neld created by the charge g at the origin d E What ie thadie origin. e.t harge qs at the origin. UR OL ne e E = (N/C f. JWha Oi Calculate ther THL NT Î IN/C) A charge go equal to -1.6 x 10-19 is located at the origin. The net electric field at the origin and the total force applied on the charge g will have: Osame direction Oopposite direction ik s]A charge go equal to -1.6x 10-19 is located at the origin, where the net electric field vector is supposed to be Ener "-4 i +4 ĵ IN/C). Calculate the net electric force vector created on go and select its unit (DO NOT USE THE VALUES FOUND IN THE PREVIOUS PARTS) metTwo uncharged spheres are separated by 2.50 m. If 3.10 ✕ 1012 electrons are removed from one sphere and placed on the other, determine the magnitude of the Coulomb force (in N) on one of the spheres, treating the spheres as point charges.Two fixed positively charged balls (q 1 = 1 × 10-ºC; q 2 =?) are separated by a distance d = 0.3 m. If the Coulomb force between the two charges is F = 10-6N, then the charge q2 is equal to: (ke = 9 × 10° N.m²/C²) 10^-9 C 10^-8 C 10^-7 C 10^-2 C 10^-6 C