AP EAMCET Engineering 2013 Solved Paper

Section: Physics

Question : 32 of 160

Marks: +1, -0

The ends of an element of zinc wire are kept at a small temperature difference ∆T and a small current (I) is passed through the wire.
Then, the heat developed per unit time

is proportional to ∆T and I
is proportional to I3 and ∆T
is proportional to Thomson coefficient of the metal
is proportional to ∆T only

Validate

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