Question

Two heater coils A and B made of the same material are connected in parallel across the same mains. The length and diameter of the wire used in A are double as that of the wire used in B. If H 1 and H 2 be the quantities of heat liberated per second in A and B respectively, then H 1 : H 2 =
A 1 : 4

B 2 : 1

C 1 : 2

D 1 : 1