(3%) Problem 27: A thin plastic ring of radius R = 0.39 m is sprayed with electrically charged paint in a manner that ha

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3 Problem 27 A Thin Plastic Ring Of Radius R 0 39 M Is Sprayed With Electrically Charged Paint In A Manner That Ha 1 (89.72 KiB) Viewed 49 times

(3%) Problem 27: A thin plastic ring of radius R = 0.39 m is sprayed with electrically charged paint in a manner that half of the ring has a constant line charge density of + and the other half has constant line charge density of -2, where λ = 8.9 mC/m. +2 ▷ A 33% Part (a) Enter an expression for the magnitude of the electric field at the center of the ring. (Note: E is not zero even though the total charge on the ring is clearly zero.) Grade Summary E = 0% Deductions Potential 100% Late Work % 50% В Late Potential EO 2 50% Y N π Ө b * с d → e (7 8 9 HOME 1^^45 6 /1 2 3 0 VO BACKSPACE DEI CLEAR g Submissions Attempts remaining: 30 (0% per attempt) detailed view h j k m + END . . 11 P R S Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 3 Feedback: 0% deduction per feedback. 33% Part (b) In what direction is the electric field pointing at the center of the ring? 33% Part (c) Calculate the magnitude of the electric field at the center of the ring, in newtons per coulomb. -λ O