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Author Question: Three resistors with values R1, R2, and R3, respectively, are connected in parallel. Which of the ... (Read 25 times)

Jipu 123

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on: Jul 28, 2018
Three resistors with values R1, R2, and R3, respectively, are connected in parallel. Which of the following expresses the total resistance, RT, of the three resistors when connected in parallel?
 a. RT = (1/R1 + 1/R2 + 1/R3)
  c. RT = R1 + R2 + R3
  b. RT = R1 = R2 = R3
  d. RT = (1/R1 + 1/R2 + 1/R3)-1

Question 2

An astronomical unit (AU) is the average distance from the Earth to the Sun. An comet in orbit around the Sun has a perihelion (near point to the Sun) of 0.50 AU and an aphelion (far point from the Sun) of 5.0 AU. If the comet's orbital speed at aphelion is v, what is its speed at perihelion?
 a. 11v
  c. 5.5v
  b. 10v
  d. 4.5v


raenoj

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

D

Answer to Question 2

B


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