Answer / gopikrishna

WHEN DISIMILAR METALS OF DIFFERENT TEMPERATURES ARE JOINED
AN EMF IS INDUCED AT THE JUNCTION THIS IS SEEBACK EFFECT

Answer / renjith

When the junction of dissimilar metals are kept at different
temperatures,then an emf is introduced b/w both the junction.

Answer / bharathi

Two dissimilar material jointed together it is called hot
junction and kept free other end it is called cold junction.
An emf induced at cold junction it directly proportional to
temperature difference between two junctions. For example
the hot surface is in 300 deg c (hot junction) and room temp
is 30 deg c (cold junction) you will get mv which is equal
to 270 deg c.

Answer / hgh

Two dissimilar material jointed together it is called hot
junction and kept free other end it is called cold junction.
An emf induced at cold junction it directly proportional to
temperature difference between two junctions. For example
the hot surface is in 300 deg c (hot junction) and room temp
is 30 deg c (cold junction) you will get mv which is equal
to 270 deg c.
When the junction of dissimilar metals are kept at different
temperatures,then an emf is introduced b/w both the junction

Answer / rajesh

when any two dissimilar metals joined at each end ,one
junction at higher temp another at low temp ,then there
induced an emf ,thats depend on differrence between two
junction temperature

Answer / bilawal

when any two metals of different nature joind from both the
ends and then heated from on end the current is being
prodused due to the different value of electron in outer
most shell of the metals.

Answer / prasath

THE TEMPERATURE DIFFERENCE BETWEEN TWO DISSIMILAR METALS ARE JOINED AN EMF IN INDUCED AT THE JUNCTION THIS IS SEEBACK EFFECT.

Answer / manish kumar tiwari

WHEN TWO DISSIMILAR METALS ARE AT DIFFRENT TEMPRETURE ONE OF
THEM IS HOT AND ANODER COLD COMPARING TO IT AND WHEN THE
TEMPRETURE WILL INCRISE IN HOT END THEN AN E.M.F. WILL
INDUSED IN JUNCTIONOF BOTH METALS AND IT IT WILL BE IN "mv"

Answer / samira patel (itps)

IF TWO DISSIMILAR METALS ARE JOINED TOGETHER SO AS TO FORM A
CLOSED CIRCUIT ,THERE WILL BE TWO JUNCTION FORMED WHERE THEY
MEET EACH OTHER.ONE OF THE JUNCTION IS CALLED HOT JUNCTION
OR REFERENCE JUNCTION AND ANOTHER JUNCTION IS CALLED COLD
JUNCTION OR MEASURING JUNCTION.IF HOT JUNCTION IS HEATED AN
EMF IS INDUCED AND FLOWS THROUGH THE WIRE ,THAT IS MEASURED
BY A GALVANOMETER OR MULTIMETER.THIS EFFECT IS CALLED
THERMOELECTRIC EFFECT AND THIS IS FIRST OBSERVED IN 1821 BY
SEEBACK SO IT IS ALSO CALLED AS SEEBACK EFFECT.

Why are the uses 24vdc in industries

0 Answers  

how can we measure the pressure in underground cooling water pipeline by using pressure transmitter?what about the tapping position?

2 Answers  

WHAT IS THE MASS FLOW FLOW METER

4 Answers   Reliance,

why the steam drum and deaerator level transmitter range is in negative MMWC to zero

3 Answers   Emerson, Jindal, JKPM,

I want measure the volumetric flow of gas in waste heat recovery Boiler?Tell me how and which type of instruments required. Plz mail me:naba02222@gmail.com Sam please post the answer .

0 Answers  

Why the tapping connections are taking above for gas service and below for liquid service?

2 Answers   ADCO,

thru which signal does µP communicate with memory

3 Answers  

FOR CO/CO2/O2/NOX applications which of the following manufature is best? and what is the basic principle of gas analysers? ABB/YOKOGAWA/EMERSON/SIEMENS/TELEDYNE/THERMOFISHER

4 Answers  

What is the role of P(Protional), I(Integral) and D (Derivative) in PID Controller?

9 Answers  

flow transmitter formula?

0 Answers   BEMCO, Siemens, Yokogawa,

What is Fieldbus?

3 Answers   NSL,

If we increase D what will be the controller action?

2 Answers