Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Field (physics) wikipedia , lookup
Magnetic monopole wikipedia , lookup
Roche limit wikipedia , lookup
Aristotelian physics wikipedia , lookup
Aharonov–Bohm effect wikipedia , lookup
Centripetal force wikipedia , lookup
Maxwell's equations wikipedia , lookup
Lorentz force wikipedia , lookup
Physics 42 Take Home Quiz #4 Due 9/17 Print Name: _______________________ Lab 1 2 3 4 20 points 1. A thin insulating rod of length L has a total charge Q and linear charge density: λ = λ0 x . (a) Find λ0 . (b) Derive an expression for the electric potential at the point (0,a). Justify your work with pictures and words! Set up the integral and solve it. Simplify all algebra. Your answers should be in terms of L, a, Q and k only. Show how the units work out. a L 3. Show all your work, clearly label and justify anything you need to label or justify. Box answers. A solid insulating sphere of radius a carries a net positive charge 3Q , uniformly distributed throughout its volume. Concentric with this sphere is a conducting spherical shell with inner radius b and outer radius c, and having a net charge –Q , as shown. Take the ground to be at infinity. Using Gauss’s Law, find a general expression for the electric field in terms of the radial distance from the center, r, for the following: a) r < a b) a < r < c c) b < r < c d) r > c Find the potential, for the following, d) r = 0 e) r = a f) r = c = Q 3.00 = nC , a 0.10 = m, b 0.19 = m, c 0.20m using the values: