CBSE Class 10 Answered
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Asked by | 25 Oct, 2008, 02:42: PM
Expert Answer
According to Joule's law of heating, H = v2 t / R
In the given case, V and t are constant . So, ratio of heats i.e.
Hs / Hp = Rp / Rs
Here, Rp and Rs are resistances in parallel and sries respectively.
Rs = 2 + 4
Rp = ( 1/2 + 1/4 )-1
Answered by | 26 Oct, 2008, 01:33: PM
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