This topic contains a solution. Click here to go to the answer

Author Question: What is the resistance of a wire made of a material with a resistivity of 3.2 10-8 W m if its ... (Read 109 times)

TVarnum

  • Hero Member
  • *****
  • Posts: 548
What is the resistance of a wire made of a material with a resistivity of 3.2  10-8 W  m if its length is 2.5 m and its diameter is 0.50 mm?
 a. 0.16 W
  b. 0.10 W
  c. 1.28 W
  d. 0.41 W
  e. 0.81 W

Question 2

A wire (length = 2.0 m, diameter = 1.0 mm) has a resistance of 0.45W. What is the resistivity of the material used to make the wire?
 a. 5.6  10-7 W  m
  b. 1.2  10-7 W  m
  c. 1.8  10-7 W  m
  d. 2.3  10-7 W  m
  e. 7.1  10-7 W  m



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Mochi

  • Sr. Member
  • ****
  • Posts: 300
Answer to Question 1

D

Answer to Question 2

C





 

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

For a complete list of videos, visit our video library