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-
A. 1 : 2
B. 2 : 1
C. 1 : 4
D. 4 : 1
Answer:C
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-
A. 1 : 2 B. 2 : 1 C. 1 : 4 D. 4 : 1