why heat produced at junction of two different conductor.
what care should be taken to minimize it.
Answer Posted / ashwin
The two dissimilar metals behave or contribute a thermocouple. A thermocouple is a junction between two dissimilar metals when subjected to heat generates voltage. This is seebeck effect. The inverse of this effect is Peltier effect. When current is passed through a junction containing two dissimilar metals heat is generated.
For more details on the principle of thermocouple go to link below:
http://en.wikipedia.org/wiki/Thermocouple
From the above link if you can reverse the effects or its causative factors you can minimize this effect.
Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Why sometime AVR and sometime Booster coil is used in Alternator? what is the diferance between AVR & Booster coil due to which they are selected
Under wat condition statcom operates as an inductor for the transmission line?
If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer
What current position are you holding in your current company?
Can anyone tell the proper diagram of star delta starter????
Why you want to join non technical field when you are an engineer?
What is BusBar integrity test and how it is conducted?
What is the one main difference between ups & inverter ? And electrical engineering & electronics engineering ?
What is the permissible maximum flux density in transformer core?
what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?
what a function diesel generetaor turbo charger & turbo charger is more heated explain reason ?
What is difference between SMC supportg and Glass Fibre Reinforced Plastic Support.
what is the Earth Voltages in Power Plants, Sub-stations, Industries, Residential & Commercial Buildings.
why the neutral point in connnection oscillates?
EXPLAIN METOD OF IMAGE OF TRANSMISSION LINE/ WHAT ARE ITS PRACTICAL APPLICATION?