ETextBook-g Principles of x R (3) UOS-Phy: x y # Dropbox-Nb A point charLi https

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ETextBook-g Principles of x R (3) UOS-Phy: x y # Dropbox-Nb A point charLi https://www x Online PhysicG Home Chec x b area pf hem x c Dropbox nc[US] https://www dropbox.com/s/vtquyauccea6r4c/Midterm 1 Solution-Fall 2015.pdf?dl=0&fb;=1&fb; action ds-10205023931 784000&fb;_a :: Apps ArmazonBrowserBar Lenovo 9 Voxox Free Calls Electric Charge-We Beyond Everyday Ph W Electron-positron a Mohamed V ABP Midterm-1-Solution-Fall-2015.pdf Download Sign in Comments Options Part B - Solve all the following questions: (3 marks each Q1. A point charge q placed at the origin produces an electric field components of Ex-5.3 N/C and Ey--8.7 N/C at the point P in the figure below a) Find E at the point A on the x-axis at XA-2.5 m b) Calculate the force on 1 uC point charge at point A Post a comment to start a discussion. @Mention someone to notify them. 2.5m A Write a comment Comments will notify 1 person. Anyone who can view this file can comment 2:05 AM 10/27/2015

Explanation / Answer

Here ,

net field at P , E = sqrt(Ex^2 + Ey^2)

E =sqrt(5.3^2 + 8.7^2)

E = 10.2 N/C

let the charge is Q

10.2 = 9*10^9 * Q/(1.1^2 + 1.8^2)

Q = 5.3 *10^-9 C

a)

now , eletric field at A = k * Q/2.5^2

eletric field at A = 9*10^9 * 5.3 *10^-9/2.5^2

eletric field at A = 7.62 N/C

the eletric field at A is 7.62 N/C

b)

force on the charge 1 uC = force * charge

force on the charge 1 uC = 7.62 * 1 *10^-6

force on the charge 1 uC = 7.62 * 10^-6 C

the force on the charge 1 uC is 7.62 * 10^-6 C

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