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Asked by  | 25th 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  | 26th Oct, 2008, 01:33: PM

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