« previous next »

Author Question: The power factor of an RLC circuit is defined as cos = R/Z, but the phase angle can also be ... (Read 601 times)

Chelseaamend

  • Hero Member
  • *****
  • Posts: 545
on: Jul 27, 2018
The power factor of an RLC circuit is defined as cos  = R/Z, but the phase angle can also be calculated from
 
  A) sin  = (XL - XC)/Z.
  B) sin  = (XL - XC)/RZ.
  C) sin  = Z/(XL - XC).
  D) sin  = RZ/(XL - XC).

Question 2

What is the theoretical efficiency of a Carnot engine that operates between 600 K and 300 K?
 
  A) 100
  B) 75
  C) 25
  D) 50
  E) 0


AaaA

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Insert the needle with the beveled side up. Keep the angle low, 10 to 30 degrees. Insert the needle with the beveled side up. Keep the angle low, 10 to 30 degrees.
Durable power of attorney. Durable power of attorney.
How to plot a cosine function containing an amplitude and phase-shift (Question 1 of 2) How to plot a cosine function containing an amplitude and phase-shift (Question 1 of 2)
How to find the resultant vector of two vectors separated by a known angle How to find the resultant vector of two vectors separated by a known angle
Finding the derivative using the power rule - Solutions Finding the derivative using the power rule - Solutions
During G0 and early G1, pRB interacts with and inactivates transcription factor E2F During G0 and early G1, pRB interacts with and inactivates transcription factor E2F
Video: Spermatogenesis Animation

For a complete list of videos, visit our video library