are first connected in series and then in parallel to a constant potential difference. If the rates of heat produced in the two cases are Hs and Hp respectively
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Two heater wires, made of the same material and having the same length and the same radius, are first connected in series and then in parallel to a constant potential difference. If the rates of heat produced in the two cases are Hs and Hp respectively, then Hs/Hp will be are first connected in series [...]