Author Question: The phase angle of a series RL ac circuit with a 20.0-mH inductor and a certain resistor at 1000 Hz ... (Read 74 times)

itsmyluck

  • Hero Member
  • *****
  • Posts: 546
The phase angle of a series RL ac circuit with a 20.0-mH inductor and a certain resistor at 1000 Hz is 20.0. What is the resistance in this circuit?
 
  A) 145  B) 200  C) 100  D) 245  E) 345

Question 2

An object 3.4 mm tall is placed 25 cm from the vertex of a convex spherical mirror. The radius of curvature of the mirror has a magnitude of 52 cm.
  (a) How far is the image from the vertex of the mirror?
  (b) What is the height of the image?
 
  What will be an ideal response?



qytan

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

E

Answer to Question 2

(a) 13 cm (b) 1.7 mm



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

For a complete list of videos, visit our video library