iPad 10:30 PM * 27%.-> course Home te MasteringPhysics: 2-04-1 El × (- C https//

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iPad 10:30 PM * 27%.-> course Home te MasteringPhysics: 2-04-1 El × (- C https//session.masteringphysics.com/myct/itemView?assignmentProblemID:92675674&of.; Constants The electric field at the point z = 5.00 cm and y = 0 points in the positive z direction with a magnitude of 9.00 N/C . At the point z 10.0 cm and 0 the electric field points in the positive direction with a magnitude of 20.0 N/C. Assume this electric field is produced by a single point charge. Part A Find the charge's location. cm Submit Previous Answers Request Answer X Incorrect; Try Again; 27 attempts remaining Part B Find the sign of the charge.

Explanation / Answer

Let the charge is located at x

For x=0.05 m

E=Kq/(0.05-x)^2=9........(i)

For x=0.1 cm

E=Kq/(0.1-x)^2=20.......(ii)

Solving  

(i) and (ii)

We got

x=0.202 m=20.2 cm

q=2.31*10^(-11) C=0.231 pC

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