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Author Question: Identical point charges (+50 mC) are placed at the corners of a square with sides of 2.0-m length. ... (Read 122 times)

CharlieWard

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on: Jul 28, 2018
Identical point charges (+50 mC) are placed at the corners of a square with sides of 2.0-m length. How much external energy is required to bring a fifth identical charge from infinity to the geometric center of the square?
 a. 41 J
  b. 16 J
  c. 64 J
  d. 10 J
  e. 80 J

Question 2

Four identical point charges (+4.0 mC) are placed at the corners of a square which has 20-cm sides. How much work is required to assemble this charge arrangement starting with each of the charges a very large distance from any of the other charges?
 a. +2.9 J
  b. +3.9 J
  c. +2.2 J
  d. +4.3 J
  e. +1.9 J


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parker125

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

C

Answer to Question 2

B


CharlieWard

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Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

tkempin

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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