Question

2. Two resistance wires of the same material and of equal lengths and equal diameters are connected in series in a simple electric circuit consisting of a voltage source of voltage V. Now, the same wires are connected in parallel in the same circuit for the same time but voltage source is replaced by another voltage source of voltage 2V. The ratio of heat produced in the two cases is
(a) 1:1
(b) 1:4
(C) 1:8
(d) 1 : 16​

Answer 1

Answer:

Two conducting wires of the same material and of equal lengths and equal diameters are first connected in series and then parallel in a circuit across the same potential difference. The ratio of heat produced in series and parallel combinations would be –Read more on Sarthaks.com - https://www.sarthaks.com/4440/conducting-wires-material-equal-lengths-equal-diameters-first-connected-series-parallel