+ + + A + A + + wire B 2) A charged sphere initially has a charge of +Q and radius RA. The sphere is then connected with a wire to a smaller sphere with radius RB.
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- Q4 Help3 decimal places answerAn eletrostatic paint sprayer consists of a charged metal sphere. Charged paint droplets (the sign the same as the metal sphere) are shot towards the metal sphere using a paint gun. The paint droplets repel and move towards a grounded object that needs to be painted. In the figure below, an electrostatic paint sprayer has a 0.25 m diameter metal sphere at a potential Vsphere of 23 kV that repels paint droplets onto a grounded wall. a) What charge is on the sphere? b) What charge must a 0.14 mg drop of paint have to arrive at the object with a speed of 12 ms?
- X FEED QUESTION 4 A particle of charge +6.1 µC is released from rest at the point x = 98 cm on an x axis. The particle begins to move due to the presence of a charge Q=+89 µC that remains fixed at the origin. What is the kinetic energy of the particle at the instant it has moved 40 cm? OA. 1.443 J OB. 0.334 J OC.0.155 J OD.3.434 J OE. 1.983 J BE ents the magnitude of the electric field as a function of the distance from the center of a solid charged conductingI'L20, AT2020-2021 Page 4 Q4. In the return stroke of a typical lightning bolt, a current of 2.5 x 10* A exists for 20 How much charge is transferred in this event? us.15 positive charges of q are distributed uniformly over the circumference of a circle with radius a. Then another charge of +Q is placed at the center of the circle. Which of the followings are true for this system? The force acting on +Q is zero. If +Q is displaced perpendicular to the surface by a small amount and released, it does not come back to the center. +Q I. III. The electrostatic potential energy of +Q is 15q9/Απέρα?s IV. The magnitude of the electric field on +Q is 159Q 4περα23
- 13- Between conductive, parallel plates, a point particle with +q charge is moved along the KLMN path. Accordingly, which of the following statements are correct? Work done on KL and LM paths are equal L. Work done on KL and MN paths are equal m. Along the way, the electrical potential energy of the particle increases. b. NOTE: The zone between the plates is equally divided in x and y directions. Mi K a) I and IIteachoo.c Question 3 Page 200 Calculate the number of electrons constituting one coulomb of charge.In each picture, a positively charged particle moves from point i to point f. Is the change AU of the particle positive, negative, or zero? a) b) c) d) +) +) f) a Choose... + Choose... + Choose... + d Choose... + e Choose... + f Choose... + g Choose... + ()