In the figure a plastic rod having a uniformly distributed charge Q = -21.5 pC has been bent into a circular arc of radius 4.87 cm and central angle 120°. With V = 0 at infinity, what is the electric potential in volts at P, the center of curvature of the rod? Number i Units
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- Please circle your answer. Thank youDielectric Ball in Electric Field Given a sphere of radius R made of a dielectric material that is isotropic and linear with a dielectric constant e_d. The sphere is placed in an area of vacuum with an electric field E_0 directed to the z-axis. Define electric scalar potential inside and outside the sphere!What is the charge on each capacitor in the figure, if AV = 9.0 V ?(Figure 1) Enter your answers numerically separated by commas. Πν ΑΣφ Q1, Q2, Q3 = µC Submit Request Answer Part B What is the potential difference across each capacitor in the figure? Enter your answers numerically separated by commas. nνα ΑΣφ ? AV, AV2, AV; = V Submit Request Answer Provide Feedback ( C,=4 µF Δν C,+5 µF C3 +6 µF
- D only please5. A 4.0-nm-diameter protein is in a 0.05 M KCl solution at 25°C. The protein has 9 positive and 20 negative charges. Model the protein as a sphere with a uniform surface charge density. What is the electric potential of the protein (a) at the surface and (b) 2.0 nm from the surface?A parallel plate capacitor has plate area A and plate separation d . The capacitor is given a charge Q and then isolated. The distance between the plates can then be varied, and several values can be measured.How much work is required to change the separation between the charged plates from d to 3d ?
- 1. What is a correct expression for the potential energy of the charge configuration illustrated below? Assume the sphere (of radius R) is uniformly charged. C b 92 kQq kQq, kq,q, А. + + R+а R+b kQq kQq, kq 42 + В. (R+а)? (R+b)? kQq,, kQq, , kq,q, C. + + b a kQq D. a? kq 92 + kQq,, kQq, + ? a Е.Find an expression for Electric Potential differences formed by a semicircle charged rod with a total charge of 50 micro.C at the center of a semicircle with a radius of R= 30.0 cm.A parallel-plate capacitor consists of two plates, each with an area of 25 cm2 separated by 3.0 mm . The charge on the capacitor is 4.8 nC . A proton is released from rest next to the positive plate. How long does it take for the proton to reach the negative plate? Express your answer with the appropriate units.
- A plastic disk of radius R = 72.2 cm is charged on one side with a uniform surface charge density 7.67 fC/m², and then three quadrants of the disk are removed. The remaining quadrant is shown in the figure. With V = 0 at infinity, what is the potential in volts due to the remaining quadrant at point P, which is on the central axis of the original disk at distance D = 0.429 cm from the original center? DOnly Part CYou place a particle of charge q at the origin and another of -2q at x = -d m. a. Write an expression for the potential at some arbitrary distance xp from the origin on the x axis. b. Similar to a), write an expression for the electric field anywhere along x axis. ) A thin wire carries uniform charge q and is shaped into a circle of radius R. a. What is the magnitude of the electric field at the center of the circle? (Hint: this one should be quick!) b. What is the value of the potential (referenced to 0 at infinity) at the center? ) Consider an infinitely long cylinder with radius R and uniform surface charge density o. a. Find the magnitude of the electric field at a distance s from the axis of the cylinder for s R. c. Using your answer to part b, find the potential difference between two points: s= a and s = b. A thin rod of length 1 carries a uniformly distributed charge q. The rod lies on the x axis with its near end at x = +d and the far end of the rod at x = d+l. a. What is the…