This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A voltage DV is applied across the ends of a Nichrome heater wire having a cross-sectional area A ... (Read 63 times)

abarnes

  • Hero Member
  • *****
  • Posts: 556
on: Jul 28, 2018
A voltage DV is applied across the ends of a Nichrome heater wire having a cross-sectional area A and length L. The same voltage is applied across the ends of a second Nichrome heater wire having a cross-sectional area A and length 2L. Which wire gets hotter?
  1.The shorter wire does.
  2.The longer wire does.
  3.More information is needed.

Question 2

Suppose an electrical wire is replaced with one having every linear dimension doubled (i.e., the length and radius have twice their original values). The wire now has
  1.more resistance than before.
  2.less resistance.
  3.The same resistance.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lkoler

  • Sr. Member
  • ****
  • Posts: 358
Reply #1 on: Jul 28, 2018
Answer to Question 1

1

Answer to Question 2

2


abarnes

  • Member
  • Posts: 556
Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

bdobbins

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Striking examples where high surface area releases heat. Striking examples where high surface area releases heat.
The Cardiac Landmarks. A = Aortic Area; P = Pulmonic Area; E = Erb’s Point; T = Tri The Cardiac Landmarks. A = Aortic Area; P = Pulmonic Area; E = Erb’s Point; T = Tri
Application of an ostomy bag or pouch: E, A clamp is applied to the bottom of the bag once it is in Application of an ostomy bag or pouch: E, A clamp is applied to the bottom of the bag once it is in
Example of Index entry for an anatomic site with a cross-reference. Example of Index entry for an anatomic site with a cross-reference.
Torque is a twisting force equal to the distance from the pivot point times the force applied ... Torque is a twisting force equal to the distance from the pivot point times the force applied ...
IgE bound to a mast cell and cross-linked by antigen-causing mast cell degranulation. IgE bound to a mast cell and cross-linked by antigen-causing mast cell degranulation.
Video: Structures that affect circulation - kidneys, blood volume and venous tone

For a complete list of videos, visit our video library