Question

two conducting wire of the same material and of equal length and equal diameter are first connected on serieaand rhen parallelin a circuit acrossthe same potential difference the ratio of heat prooduced in series and parallel combination​

Answer 1

H =I^2 RT

Here as the conductors are identical , the resistance value is same .
Also the circuit is in the same environment, so the temperature is also same . The current produced by the battery is also same .

Hence heat is not dependent on the way of arranging the electrical circuit setup , but are dependent on the above factors .

Hence the heat produced in both the setups are equal . And hence the ratio is 1 .

Hope the answer is clear.