Question
Write an expression for the heat energy liberated by a hot body.
= mcΔQ i.e., H = mcΔQ
where m is mass, c is specific heat capacity, ΔQ is the change in temperature.
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The potential difference of the battery which gives a current of 2 A in each of the 1.5 m length when connected in the parallel to the battery (assume that resistance of the battery is negligible).