PHY1122 A Assignment 3 Exercise 22.30 Exercise 22.30 Part A Two very large, nonc

Question

PHY1122 A Assignment 3 Exercise 22.30 Exercise 22.30 Part A Two very large, nonconducting plastic sheets, each 10.0 cm thick, carry uniform charge densities 1, 2 , 3 and 4 on their surfaces, as shown in the following figure(Figure 1). These surface charge densities have the values :-6.70 pC/m2 2 = 5.00 C/m2, 3 = 3.00 pC/m2 , and 4 = 4.00 pC/m2. Use Gauss's law to find the magnitude and direction of the electric field at the following points, far from the edges of these sheets What is the Express y Submit Part B igure 1of 1 of 1 What is the di to the let O to the rig upwards downwar Submit Part C What is the mag Express your ar 0 cml 12 em 10 em

Explanation / Answer

A) at point A,

Enet = (sigma2 + sigma3 + sigma4 - sigma1)/(2*epsilon)

= (5+3+4 - 6.7)*10^-6/(2*8.854*10^-12)

= 3*10^5 N/c

B) direction : to the left

C) at point B,

Enet = (sigma1 + sigma3 + sigma4 - sigma2)/(2*epsilon)

= (6.7 + 3 + 4 - 5)*10^-6/(2*8.854*10^-12)

= 4.91*10^5 N/c

D) directon : to the left

E) at point C,

Enet = (sigma1 + sigma4 - sigma2 - sigma3)/(2*epsilon)

= (6.7 + 4 - 5 - 3)*10^-6/(2*8.854*10^-12)

= 1.52*10^5 N/c

F) direction : to the left

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