Class Management l Help roblem Set 3 Begin Date: 2/10/2018 1:00:00 PM - - Due Da
ID: 1874999 • Letter: C
Question
Class Management l Help roblem Set 3 Begin Date: 2/10/2018 1:00:00 PM - - Due Date: 2/23/2018 1:00:00 PM End Date: 3/2/2018 1:00:00 PMM (896) Problem 9: A rod of length L = 0.35 m is placed along the x-axis from x = 0 to x L. The rod carries a uniform linear charge density of = 3.3E-12 C/m. V-axis ©theexpertta.com 50% Part (a) Find an expression for the infinitesimal charge along the rod in terms of the variables, L , x,y, and or the differential positions d and dy. Grade Summary Deductions Potential 100% Submissions Attempts remaining: 9 (100 per attempt) detailed view dx im 0 DE CLEAR Submit I give up! Hints: 0% deduction per hit. Hints remaining: 3 Feedback: 0% deduction per feedback. 50% Part (b) what is the value of the potential at the point (xob Job) in volts for x b 1.3 m and Job 0.95 m?Explanation / Answer
given
9. givne length of rod = L = 0.35 m
from x = 0 to x = L
lambda = 3.3*10^-12 C/m
a. infintesimal charge along the length of the rod will be
dq = lambda*dx
b. potential at pooint (x',y') due to dq
dV = k*lambda*dx/sqrt((x' - x)^2 + y'^2)
integrating
V = k*lambda*[ln[(sqrot((1.3 - 0.35)^2 + 0.95^2) + 1.3 - 0.35)/(sqrot((1.3)^2 + 0.95^2) + 1.3)]
V = 0.00705 V