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

Author Question: A high-resistance material is used as an insulator between the conductors of a length of coaxial ... (Read 106 times)

j.rubin

  • Hero Member
  • *****
  • Posts: 557
on: Aug 6, 2020

Question 1

A cook plugs a 500 W crockpot and a 1 000 W kettle into a 240 V power supply, all operating on direct current. When we compare the two, we find that

◦
Icrockpot<Ikettle and Rcrockpot<Rkettle.

◦
Icrockpot<Ikettle and Rcrockpot>Rkettle.

◦
Icrockpot = Ikettle and Rcrockpot = Rkettle.

◦
Icrockpot>Ikettle and Rcrockpot<Rkettle.

◦
Icrockpot>Ikettle and Rcrockpot>Rkettle.


Question 2

A high-resistance material is used as an insulator between the conductors of a length of coaxial cable. The resistance material, which forms a hollow tube, has an inner radius a and an outer radius b, and the insulator provides a resistance R between the conductors. If a second insulator, made of the same material and having the same length, is made with double both the inner radius and the outer radius of the first, what resistance would it provide between the conductors?

◦
R

◦
2 R

◦
4 R

◦
(ln2)R

◦
R/(ln2)
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by j.rubin on Aug 6, 2020

AngeliqueG

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Aug 6, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


j.rubin

  • Member
  • Posts: 557
Reply 2 on: Aug 6, 2020
Wow, this really help

CAPTAINAMERICA

  • Member
  • Posts: 325
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

The locations of genetic material in animal and plant cells. The locations of genetic material in animal and plant cells.
Using the cursors on the oscilloscope, the high- and low-oxygen sensor values can be displayed on ... Using the cursors on the oscilloscope, the high- and low-oxygen sensor values can be displayed on ...
To measure fuel-injector resistance, a technician constructed a short wiring harness with a double ... To measure fuel-injector resistance, a technician constructed a short wiring harness with a double ...
Family interactive style predicts academic achievement in high school Family interactive style predicts academic achievement in high school
The allowable compressive bearing capacity of a soil is 8000 psf. What should be the length of ... The allowable compressive bearing capacity of a soil is 8000 psf. What should be the length of ...
Corolla length in tobacco Corolla length in tobacco
Video: Role of ATP in muscle movement

For a complete list of videos, visit our video library