Question

< PSW 5 (Chapter 20) spring 2018 Problem 20.71 A straight wire 10 m long carries 26 uC distributed uniformly over its length HC/m ▼PartB Find the electric feld strength 20㎝from the wre ads, not near emer ond. N/C Request Answer Part C MacBook Pro

Answer 1

a) Linear charge density lambda = Q/L = 26 times 10^-6/10 = 2.6 times 10^-7 c/m b) E = lambda/2 pi f times y = 2.6 times 10^-7/2 times 3.14 times (8.85 times 10^-12) times 0.20 E = 23.390 kN/C C) E = kQ/r^2 = (9 times 10^9 times 26 times 10^-6)/(420)^2 E = 1.3265 NC