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Author Question: Two charges lie on the x axis, +3q at the origin, and -2q at x = 5.0 m. The point on the x axis ... (Read 300 times)

ereecah

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on: Jul 28, 2018
Two charges lie on the x axis, +3q at the origin, and -2q at x = 5.0 m. The point on the x axis where the electric potential has a zero value (when the value at infinity is also zero) is
 a. 1.0 m.
  b. 2.0 m.
  c. 2.5 m.
  d. 3.0 m.
  e. 4.0 m.

Question 2

Identical point charges (+30 mC) are placed at the corners of a rectangle (4.0 m  6.0 m). How much external energy is required to bring a charge of 55 mC from infinity to the midpoint of one of the 6.0-m long sides of the rectangle?
 a. 22 J
  b. 16 J
  c. 13 J
  d. 19 J
  e. 8.0 J


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kjo;oj

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Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


ereecah

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Reply 2 on: Jul 28, 2018
Excellent

softEldritch

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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