Answer:
See the answers below.
Explanation:
A transformer is a static electrical machine, it should be borne in mind that although the voltage can be increased or decreased, the power must always be equal.
For this case:
The power in the first coil can be calculated by means of the following formula.
[tex]P=V*I\\[/tex]
where:
V = voltage = 12 [V]
I = current =2 [A]
a)
Therefore the power:
[tex]P=12*2\\P=24[W][/tex]
b)
Now in the second coil, the power must be the same:
[tex]P_{secondcoil}=V*I\\24=144*I_{secondcoil}\\I_{secondcoil}=24/144\\I_{secondcoil}=0.166[A][/tex]
