La intensidad de corriente que circula por un conductor es 2μA. ¿Que tiempo demoraran 5x1013 electrones en cruzar una determinada seccion transversal del conductor?

t = 4 seconds

Explanation:

The question is "The intensity of current flowing through a conductor is 2μA. How long will it take 5x1013 electrons to cross a certain cross section of the conductor? "

Current,

No of electrons,

We need to find how long will it take to given no of electrons to cross a certain cross section of the conductor.

Electric current,

t is time

Also, q = ne

So, it will take 4 seconds.

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.