A wire when connected to 220 V mains supply has power dissipation $\mathrm{P}_1$. Now the wire is cut into two equal pieces which are connected in parallel to the same supply. Power dissipation in this case is $P_2$. Then $P_2 : P_1$ is\\
(1) 1\\
(2) 4\\
(3) 2\\
(4) 3