63. What is the force on the charge q at the lower-right-hand corner of the square shown here? a a a a

Three charges are placed on a horizontal line. Charges q1 = +7 nC and q2 = -3 nC are fixed in place, with q2 2.0 m to the right of q1. Charge q3=+5 nC is in equilibrium but free to slide on the line (but not off of it.) a. Find the distance between q3 and q1 and whether q3 is to the right or left of q1. b. If q3 can move along the line away from its initial location, is the equilibrium stable or unstable? How did you decide? c. If q3 were were on a vertical line instead, so it could move up and down but not horizontally, would the equilibrium be stable or unstable for that motion? How did you decide? m

Refer to the figure below. The charge lowered into the center of the hollow conductor has a magnitude of 4.3 uC. Find the magnitude and sign of the charge on the inside and outside of the hollow conductor when the charge is as shown in the following images.

A small sphere of mass m = 6.20 g and charge q₁ = 30.4 nC is attached to the end of a string and hangs vertically as in the figure. A second charge of equal mass and charge q₂ = -58.0 nC is located below the first charge a distance d = 2.00 cm below the first charge as in the figure. 91 92 (a) Find the tension in the string. N (b) If the string can withstand a maximum tension of 0.180 N, what is the smallest value d can have before the string breaks? cm

10 nC 3.0 ст 5. Calculate the force F on the 10nc charge in the picture to the right? You should give you answer in terms of vector components. Take the x-y plane to be as drawn. You don't have to multiply through the constant k. 4.0 сm 5.0 nC -5.0 nC

A man and a woman are standing 10 m apart with no net charge. a. What negative charge must be transferred from the woman to the man to cause an attractive force of 200 N?

A sphere with a radius of 1.5cm hangs by an insulating thread. The sphere is attracted to a positively charged rod held near the sphere. a) If the ball is made of an insulating material, what can you say about the charge on the sphere? Be specific and explain your answer. b) If the ball is made of an conducting material, what can you say about the charge on the sphere? Be specific and explain your answer.

Q5. Consider three charges arranged as shown in the figure. 91 y Ө R 94 92 The values of the charges are q₁ = e; q2 = 2 e and q4 = -2 e. The charge qi is at a distance R=0.02 m from charge q2 and the 94 lies on a line that makes an angle = 60 ° with the x axis. (i) Determine the magnitude and angle of the net electrostatic force F1,net on qı due to q2 and 94.

q 1.0 m, 0 Ꮎ Show Transcribed Text 1.0 m q Two 1.70 g positive point charges on 1.0- m-long threads repel each other after being equally charged and are held at an angle 0=16. What is the charge q?

B2