Atransformer consists of 290 primary windings and 816 secondary windings. part a: if the potential difference across the primary coil is 23.0 v , what is the voltage across the secondary coil?
part b: if the potential difference across the primary coil is 23.0 v , what is the current in the secondary coil if it is connected across a 100 ω resistor? express your answer in amperes to three significant figures.

(A) 64.7172 VOLT (B) 6.471 A

Explanation:

We have given number of turns in primary that is

And number of turns in secondary that is

Primary voltage

(a) We have to find the secondary voltage  

For transformer we know that

(b) It is given that a resistance of 100 ohm is connected across secondary so current in secondary

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.