MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Trends in Modern Periodic Table

In Seebeck se...

Question

In Seebeck series, antimony appears before bismuth. But in Sb-Bi thermocouple, the current flows from:

A

Bi to Sb through hot junction

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Bi to Sb through cold junction

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Sb to Bi through cold junction

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

Sb to Bi through hot junction

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C Sb to Bi through cold junction
For a given difference in temperature of two junctions of a thermocouple, the thermo e.m.f. is more if the separation between two metals in the Seebeck series used in the formation of thermocouple Sb and Bi are extreme metals of the series.

Suggest Corrections

thumbs-up

0

Similar questions

Q. In Sb-Bi thermocouple, beyond the inversion temperature at cold junction, electric current flows from:

Q. A thermocouple is made from two metals, Antimony and Bismuth. If one junction of the couple is
kept hot and the other is kept cold then, an electric current will

Q. The thermo emf of Sb against lead is +4.3 mV and that of Bi against lead is -6.9 mV when the cold junction is at

0^{0} C

and hot junction is at

100^{0} C

. The emf of Sb- Bi thermocouple for the same temperatures is

Q. The respective temperatures of cold and hot junctions of a Sb- Bi and a Fe-Cu thermocouple are same. If

E_{1}

E_{2}

are the respective thermo emf developed in the two cases, then

Q. When the cold junction is at

0^{0} C

and the hot junction is below the temperature of inversion, emfs developed by Sb - Pb and Pb - Bi thermocouples are 31

μ

μ

V per degree centigrade respectively. Thermo emf developed by Bi-Sb thermocouple per

^{0} C

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Trends in Modern Periodic Table

Standard X Chemistry

Join BYJU'S Learning Program

CrossIcon