If a 4 ohms resister, a 7 ohms resistor and a 12 ohms resistor are connected in a parallel, which resistor has the most current in it?

The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?