JEE PHYSICS MCQ: CURRENT ELECTRICITY

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When current is passed in antimony-bismuth couple, then

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Correct option: B

The junction becomes hot when current flows from antimony to bismuth

Option B (The junction becomes hot when current flows from antimony to bismuth) is correct because of the Peltier effect, where heat is either absorbed or released at the junction of two dissimilar metals depending on the direction of current flow.

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