## Presentation on theme: "A uniform electric field, through a size of 600 N/C, is directed parallel come the confident x-axis. If the potential in ~ x = 3.0 m is 1 000 V, what is the."— Presentation transcript:

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1 A uniform electrical field, v a magnitude of 600 N/C, is command parallel come the confident x-axis. If the potential in ~ x = 3.0 m is V, what is the potential in ~ x = 1.0 m? b V c V d V a. 400 V PHY 2049: Physics II Coulomb’s law, electrical field, Gauss’ theorem and electric potential. -W = qΔV power conservation applies. U F V E 2 PHY 2049: class Quiz If 500 J of job-related are compelled to bring a charged particle in between two points with a potential distinction of 20V, the size of the charge on the fragment is: A C B. 12.5C C. 20C D. Can not be computed uneven the course is given E. Nobody of this E=25C 3 PHY 2049: Physics II What is the potential in ~ the center point (in systems of kq/d) ? a) -7(b) -5(c) -7(d) -7 4 PHY 2049: Physics II calculate the electric Field at PCalculate the el. Potential at ns 5 PHY 2049: Physics II point charge circulation of chargesLine fee at an leaf Disc on an axis v the center 6 part old business: What is the electric field the a covering of a uniform spherical fee distribution? What is the potential for each that the above? 7 PHY 2049: Physics II part old businessThe potential of a uniform spherical charge. Calculate electrical field, combine it to obtain the potential E r R V V 8 two particles v charges Q and -Q are fixed at the vertices the an it is provided triangle with sides of length a. The work compelled to move a fragment with fee q indigenous the various other vertex come the center of the line joining the addressed particles is: A. 0 B. KQq/a C. KQq/a2 D. 2kQq/a E. 1.4kQq/a a 9 PHY 2049: Physics II a= 39 centimeter q1 = 3.4pC q2 = 6 computer E in ~ the center?What is the potential in ~ the center? store in mental that electric field is a derivative and one demands V(x,y,z) and not simply V(0,0,0) at the center. 10 PHY 2049: Physics II one outlineCapacitors, plate, coaxial, spherical.. Energy, Dielectric strength, Dielectric constant. Netweorks: Parallel and series configuration. 11 PHY 2049: Physics II Capacitors: A machine to organize charge.It is hosted by Coulomb force between the charges. +q and –q top top two separate places. V : potential difference: q= CV C: capacitance devices farad. 12 PHY 2049: Physics II 13 PHY 2049: Physics II 14 Potential close to a sheet charge 15 Potential near a paper charge 16 PHY 2049: Physics II 17 PHY 2049: Physics II What around the 18 PHY 2049: Physics II 19 HITT A uniform electrical field, with a magnitude of 600 N/C, is command parallel to the confident x-axis. If the potential at x = 3.0 m is 1000 V, what is the potential in ~ x = 1.0 m? a. 400 Vb Vc V d V c 20 PHY 2049: Physics II What is the capacitance the various familiar balls. C = 4πεoR = R(m) F Basketball-it is an insulator van de Graff top planet (radius 6.4 X 106 m) CE = 0.71 mF 21 PHY 2049: Physics II energy stored in a capacitorU = ½ CV2 = Q2/2C = ½ QV Dielectric stamin (oops I burned it/broke it) Capacitor enhancement by inserting a dielectric: replace εo by κεo 22 PHY 2049: Physics II 23 PHY 2049: Physics II Ceq = C1+C2+C3 24 PHY 2049: Physics II 25 PHY 2049: Physics II Charging and also discharging that capacitors. 26 PHY 2049: Physics II 25.20 27 PHY 2049: Physics II move closed top top left, capacitor C1 is gift charged We have actually C2 = C3 = 20 μF in parallel. The identical capacitor is then Ceq = 40 μF. When the move is thrown come right, the battery is disconnected, the fee is shared in between the capacitors C1 and also Ceq = 40.

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What is the fee on old C2 and C3? Is your answer 40 μC? What is your answer if C2 = 10 μF and C3 = 30 μF? 28 PHY 2049: Physics II All about capacitors Capacitance systems FaradC = 4 π κεo R for a ball of radius R and dielectric continuous κ. Power stored dielectrics and also strength Parallel and collection elements in a network 