In recent years it has been possible to buy a 1.0 f capacitor. this is an enormously large amount of capacitance. suppose you want to build a 1.0 hz oscillator with a 1.0 f capacitor. you have a spool of 0.25-mm-diameter wire and a 3.6-cm-diameter plastic cylinder. how long must your inductor be if you wrap it with 2 layers of closely spaced turns? express your answer to two significant figures and include the appropriate units.