Question

Note: This test contains ten questions from chapter 19 to chapter 27. For full credit, you should show all the steps of your numerical answers. No credit would be earned for just circling the right answers. Chapter 19 - Electric Potential and Electric Potential Energy 1. Two point charges are of + 7 uC and - 4 C are held at the corners of a rectangle as shown. The lengths of the sides of rectangle are 0.15 m, and 0.05 m as shown. Assume that the electric potential is defined to be zero at infinity. + 7 C 3.a. Determine the electric potential VA at corner A A) + 1 x 10' V B) - 2 x 105 V C) – 3 x 10% v D) - 6x 10 V E) zero volts 0.15 0.05 m -4 V=Kq EPER=K9A.98_(5) 3b. What is the energy required to bring the charge q = +5.0 x 10" Cfrom infinity and place it at point A? a) 1.5J b) 1.3J c) 3.5J c) 1.7J 3c. What is the potential difference, Vs-V, between corners B and A? A) + 1.32 x 10% V B) - 3.23 x 105 V C) + 7.24 x 10$ D) - 8.5 x 10 V E) zero volts

Answer 1

Ned posential at Air - Чка lo ooos o.is 2x19 / was 3x105 v Aug B Work anegy equired ; Uz qv = Tor 5x (-3x105) = 5x108 2 -1.5 o-/-1.5) Work guipred = - 1.5 Joule