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A thermocouple is made from two metals, ...

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

A

flow from Antimony to Bismuth at the hot junction

B

flow from Bismuth to Antimony at the cold junction

C

now flow through the thermocouple

D

flow from Antimony to Bismuth at the cold junction

Text Solution

Verified by Experts

The correct Answer is:
D
(d) At cold junction, current flows from Antimony to Bismuth (because current flows from metal occurring later in the series to metal occurring earlier in the thermoelectric series).
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