Please show work and show where all the numbers come from so that I can see wher
ID: 1868983 • Letter: P
Question
Please show work and show where all the numbers come from so that I can see where I'm going wrong and figure out how to do other problems like this one. Thank you!
I've included a screenshot of my previous attempts in case that helps.
Two 10-cm-diameter charged disks face each other, 17 cm apart. The left disk is charged to - 50 nC and the right disk is charged to 50 nC Part A What is the electric field E, both magnitude and direction, at the midpoint between the two disks? Express your answer to two significant figures and include the appropriate units 1E1=1 Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 8 attempts remaining Part B To the left disk. To the right disk Parallel to the plane of the disks. SubmitExplanation / Answer
(A) field strength due to a charged disc,
E = (Q / 2 pi e0 R^2) [ 1 - (x / sqrt(x^2 + R^2))]
at mid point, x = 17/2 = 8.5 cm , magnitude of field due to both disc will be same.
and due to left disk, toward the disc so to the left.
due to right disk(+ve charged), away from the disc so to the right.
hence Enet = 2 E
= (50 x 10^-9 / (pi x 8.854 x 10^-12 x 0.05^2)[1 - 0.085 / sqrt(0.085^2 + 0.05^2)]
= 99272 N/C Or 9.93 x 10^4 N/C .....Ans
(B) to the left disk.
(C) F = q E
so F = (2.2 x 10^-9)(99272)
= 2.18 x 10^-4 N .......Ans
(D) F = q E
and q is negative charge so direction of force will ve opposite of field.