How long does it take to drive from one end of california to the other?

California is the third largest state and the only two bigger states than California are Alaska and Texas so it really depends on how you want to cross it. There are two routes to cross California depending on how you plan your visit and places you need to see. Depending on the route you take crossing California can take from twelve to almost sixteen hours of drive. 

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

iron would move it is magnetic there is a mag field around the current in the wire