7. A particle (charge = 50.0 uC) moves in a region where the only force on it is an electric force. As the particle moves 25.0 cm from point A to point B, its kinetic energy increases by 1.00 x 10-3 J. What is the electric potential difference, Ve - VA?
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- 4. charge moves a distance of 2.0 cm in the direction of a uniform electric field whose magnitude is 215 N/C. As the charge moves, its electrical potential energy decreases by 6.9 x10-19 J. Find the charge on the moving particle. What is the potential difference between the two locations?2. Three point-like charges are placed at the corners of a rectangle as shown in the figure, a = 28.0 cm and b What is the electric potential energy of the charge 92? 91 = -32.0 μC, 92 = –22.0 μC, 93 = J ssfoss sf60 ssf60 ssf60 ssf60 ssf60 92 soojas de ojas (jss Brojs8 09J800955198 09 +45.0 μC. ssf60 s** ssfóssissf60) 2160 48.0 cm. 0 s60 ssf60 ssf60 ssf60 ssf60 ssf60 s ssf60 ssf60 ssf60 ssf60 f60 ssfThree point charges are placed at the corners of a rectangle, as shown in the figure. 93 = +5 µC 91 = -4 µC |12 cm 15 ст 92 = +3 µC A A. Determine the potential at point A, taking V = 0 at a great distance. B. Determine the change in electric potential energy when a fourth point charge, q4 = -2 µC, is brought to point A from infinitely far away. Assume that the three point charges remain fjxed in position.
- 5. In a certain region of space, potential difference between two points A and B is 50 V (VĄ – Vg = 50 V). What is the work done by the electric field to move a proton from point A to B? [V» = 0] Answer: 80 x 10-19 J 6. Figure shows two charged particles separated by 12 cm. Find the electrostatic potential energy of the system. Q1 = 2 µC Q-3 μC d = 12 cm Answer: -0.45 J1.0 nC + 3.0 cm / \ 3.0 cm 3.0 cm -2.0 nC -2.0 nC Oh no! That triangle is back! Except this time Prof. P was tired of that wonky 1.0 nC positive charge and replaced it with a new exciting and debonair positive 0.2 nC charge (those two boring negative charges and all the distances stayed the same). What is the electric potential energy of this too- exciting for the world arrangement of charges now (in milliJoules)?8. Two point charges, q1=q2=13nC, are located on the x-axis and is 8 meters apart. Assuming that q1 is located at the origin: a. Find the work that must be done by an external force to bring a third point charge q3 =-13nC from infinity to x=11m. b. Find the total potential energy of the system of three charges.
- l Asiacell ? ÖÖ 9:29 © %77 Bitti A docs.google.com AA lower potential energy. higher to lower electric potential; lower to higher potential energy. Which is true? I. It takes positive work to bring like charges together. II. Electric field lines always point in the direction of decreasing electric potential. III. If a negative charge moves in the direction of the electric field, its potential energy decreases. O I and Il only. O I only. O I, Il and II. Il and III only. Il only.9. chapter25-question20 Three particles q1 = +2 nC, q2 = -2 nC, 93 = +2 nC are located at the corner of a equilateral triangle of side b=20 cm. Find the electric potential at the center of the triangle (in Volts, k = 9 x 10° N · m² /C?)? Option1 Option2 Option3 Option4 Option5 200 156 186 28034. I need help with these questions. The question reads: A uniform electric field has magnitude 240 N/C and is directed to the right. A particle with charge +4.2 nC moves along the straight line from a to b. a) what is the electric force that acts on the particle? B) what is the work done on the particle by the electric field? C) what is the potential difference Va-Vb between points a and b?
- question 4- How do i solve this problem?U = k 9193 T13 Suppose we want to add another charge, 95, what term/s should be added to the potential energy for the four charges? O A. O B. O C. O D. 9192 T12 k k k k + 9495 T45 91 92 712 9195 T15 91 T51 + The electric potential energy needed to assemble four charges (91, 92, 93, andq4) is given by 9194 9394 9293 9294 + + T14 723 724 134 + + 9293 9394 + T23 T34 9295 125 + 93 95 735 + + + 92 93 94 + + 152 753 154 9495 145 9495 T452. Three charges are located at the corners of an equilateral triangle of 10-mm side. What is the value of the electric potential at midway between q2 and 93? Answer: qz =+ 10μC q₁ =+ 2μC q3 =- 5μC