Secure https lisession.masteringphysics 75233702 Phys 134: introduction to Elect

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Secure https lisession.masteringphysics 75233702 Phys 134: introduction to Electricity and Magnetism Problem 23.16 Problem 23.16 Part A What is the electric feid E. both magnitude and direction. at the midpoint between the two disks? Two 10-cm-diameter charged disks face each other, 19 cm to -50 nC and the right disk is apart. The left disk is charged Express your answer to two significant figures and include the appropriate units charged to 50 nC Value Units My Answers Part B To the left disk. To the right disk Parallel to the plane of the disks. My Answers Part C What is e foto Fona 25 mc charge placed midpoinn Express your answer to two significant figures and include the appropriate units. F. Value Units My Answers ghen Part D signed in Mohammad Aimaa

Explanation / Answer

(A)
r = d/2 = 10/2 = 5 cm
x = 19/2 = 9.5 cm
Q = 50 nC

Electric Field due to uniformly charged disk on it's axis is given by,
E = 2*k*Q/r^2 * [ 1 - x / sqrt(x^2 + r^2) ]
Due to principle of superposition, Net Electric Field
Enet = 2 * E
Enet = (4 * 8.9 * 10^9 * 50 * 10^-9)/(0.05)^2 * [ 1 - 0.095 / sqrt(0.095^2 + 0.05^2) ]
Enet = 81938.2 N/C

(B)
Direction :- To the left disk !!

(C)
Force on the charge, F = q * Enet
F = 2.5 * 10^--9 * 81938.2 N
F = 2.05 * 10^-4 N

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