The opposite figure represents two solenoids ( x and y ) of the same
length and number of turns, if the cross-sectional area of y is double
that of x, so the ratio of inductive reactance of coil (X) to that of
coil (Y) if they are connected to the same source is……..
a) 1:2
b) 2:1
c) 1:4
d) 4:1