Touch and Go. Three identical conducting spheres denoted as X, Y, and Z are separated in space. They have initial net charges of -2Q, -3Q, and 5Q, respectively. Sphere Z is touched to X and separated, then touched to Y and separated. Upon reaching electrostatic equilibrium, what is the final net charge of Y?

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4. Touch and Go. Three identical conducting spheres denoted as X,Y, and Z are
separated in space. They have initial net charges of -2Q, -3Q, and 5Q, respectively.
Sphere Z is touched to X and separated, then touched to Y and separated. Upon
reaching electrostatic equilibrium, what is the final net charge of Y?
а. 3Q/2
b. 3Q/4
с. — 3Q/2
d. -3Q/4
5. Sheets. Three infinite sheets of uniform surface charge
densities of +o, +o and -o are arranged as shown. What is the
magnitude and direction of the electric field at region III?
+o +o -Ơ
30
C. +
2€0
а.
2€0
30
d. +
2€0
b. 0
Problem Solving
Instructions: Read the problem carefully. Upload what is asked in the given UVLE
assignment. Wrong answers and those not following what is asked will be given half the
credit.
A semi-circular rod of radius R contains a positive
charge +Q. The field point P is situated at the
center of curvature of the semi-circle. In terms of
k, Q, and R, what is the magnitude and direction of
the electric field at point P? (2 pts)
+Q
P
a
R
Transcribed Image Text:4. Touch and Go. Three identical conducting spheres denoted as X,Y, and Z are separated in space. They have initial net charges of -2Q, -3Q, and 5Q, respectively. Sphere Z is touched to X and separated, then touched to Y and separated. Upon reaching electrostatic equilibrium, what is the final net charge of Y? а. 3Q/2 b. 3Q/4 с. — 3Q/2 d. -3Q/4 5. Sheets. Three infinite sheets of uniform surface charge densities of +o, +o and -o are arranged as shown. What is the magnitude and direction of the electric field at region III? +o +o -Ơ 30 C. + 2€0 а. 2€0 30 d. + 2€0 b. 0 Problem Solving Instructions: Read the problem carefully. Upload what is asked in the given UVLE assignment. Wrong answers and those not following what is asked will be given half the credit. A semi-circular rod of radius R contains a positive charge +Q. The field point P is situated at the center of curvature of the semi-circle. In terms of k, Q, and R, what is the magnitude and direction of the electric field at point P? (2 pts) +Q P a R
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