Question

Depending on the composition, some metals show positive potential at the hot end, while others show...

Depending on the composition, some metals show positive potential at the hot end, while others show negative potential at the hot end. Explain what causes these different behaviour. This is regards to the concept of Seebeck effect.

Science   Advanced-Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

If Seebeck coefficient is positive than the hotter end is at lower potential else the cooler end is at lower potential.

What we need to understand is how this sign changes for different materials depending upon their composition ?

In metal charge carriers are electrons in conduction band. Therefore if the Fermi level is higher in the conduction band it will act like an N-type semiconductor which means that electron will flow from hotter side which will accumulate electrons on other side creating a low potential there. So hotter side is at higher potential. But if Fermi level is low and resides more towards valence band exactly reverse thing happen.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The old TVs accelerate electrons towards the screen through potential differences of thousands of volts over...
The old TVs accelerate electrons towards the screen through potential differences of thousands of volts over just a few centimeters. Once the electrons are accelerated, they are somehow bent towards different parts of the screen to make up the picture. I once opened one of these TVs to investigate in detail. I found imprinted “5500V” on a part that looked like two capacitor plates, indicating that a potential difference of 5500V is maintained between these capacitor plates. Definitely do not...
The text defines personality as “a person’s relatively stable feelings, thoughts, and behavioral patterns” while values...
The text defines personality as “a person’s relatively stable feelings, thoughts, and behavioral patterns” while values are “stable life goals, reflecting what is most important to them.” Pick one of the “Big Five Personality Traits” (see figure 2.5) that details the most important trait for your current job. Describe why this is the most important. Give an example of how this personality trait aligns with one of your professional goals. Big Five Personality Traits.... Openness to experience (inventive/curious vs. consistent/cautious)....
Ways To Deal With Workplace Negative Behavior – Corridor Combat Everyone seems to be doing it....
Ways To Deal With Workplace Negative Behavior – Corridor Combat Everyone seems to be doing it. Probably all of us have engaged in it — some of us more so than others. But, what is corridor combat and is it effective? How does it contribute to escalating negative behaviors in the workplace? Corridor combat is when two people (who are not getting on well at work) pass each other in the corridor, and smile at each other while muttering silently...
Argentina and Ecuador: Understanding the Currency Crisis While fiscal policy is never far from the mind...
Argentina and Ecuador: Understanding the Currency Crisis While fiscal policy is never far from the mind of your average Argentine, who remembers the tough times and hyperinflation of the 1980s, the events of 2001 and 2002 have brought fiscal policy back to the forefront of public concern. Though the early 1990s may have been characterized by financial optimism, Argentina has been in a recession since Brazil's 1998 monetary crisis sent shockwaves across the regional and global markets. In early 2002,...
Please read through the article below and answer the question at the end of the article....
Please read through the article below and answer the question at the end of the article. High-Performing Teams Need Psychological Safety. Here’s How to Create It “There’s no team without trust,” says Paul Santagata, Head of Industry at Google. He knows the results of the tech giant’s massive two-year study on team performance, which revealed that the highest-performing teams have one thing in common: psychological safety, the belief that you won’t be punished when you make a mistake. Studies show...
CASE STUDY Jim Smith had finally reached the big decision. He had been considering it for...
CASE STUDY Jim Smith had finally reached the big decision. He had been considering it for some time, but after a number of sleepless nights, and discussions with his family, he had decided on a retirement date. Jim was Vic-President of Sales and Marketing for Safeco Inc. Safeco produced, marketed and sold Health and Safety Prevention promotional material. Jim had worked for Safeco for 26 years. He was fiercely loyal to the organization and wanted to make sure that he...
There are two reflective essays from MED students during their third year internal medicine clerkship. One...
There are two reflective essays from MED students during their third year internal medicine clerkship. One student sees each connection to a patient as like the individual brush strokes of an artist and the other sees gratitude in a patient with an incurable illness and is moved to gratitude in her own life. (WORD COUNT 500) Reflect on both essays and then choose one and describe how the student grew from the experience. Then explain what you learned as a...
Read the following case carefully and then answer the questions. In the movie Face/Off, John Travolta...
Read the following case carefully and then answer the questions. In the movie Face/Off, John Travolta got a new look by exchanging faces with Nicolas Cage. Unfortunately, he got a lot of trouble along with it. John could receive a much less troublesome new look by using Botox, a treatment discovered by Vancouver’s Dr. Jean Carruthers, who came upon the cosmetic potential of Botox in 1982 while treating a woman with eye spasms. Botox is marketed by Allergan, a specialty...
provide 3-4 paragraphs post (team 2) 1-What are 4 key things you learned about the topic...
provide 3-4 paragraphs post (team 2) 1-What are 4 key things you learned about the topic from reading their paper? 2-How does the topic relate to you and your current or past job? 3-Critique the paper in terms of the organization and quality.1- Employee Stress and how it has an Adverse Effect on a Company This paper explores employee stress and how it has an adverse effect on a company, its employees and the organization. Job stress can have a...
Months into the COVID-19 pandemic, which continues to affect a growing number of countries and people,...
Months into the COVID-19 pandemic, which continues to affect a growing number of countries and people, 1 the responses to our newest McKinsey Global Survey on economic sentiment confirm the extent of the damage so far. 2 Respondents are much likelier now than in March (52 percent, up from 10 percent) to say their countries’ economies have declined substantially in recent months, and more than twice as likely to report substantially worse conditions in the global economy. Across geographies, vast...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT