Question

If your only source of power was 120 VAC from a wall outlet, but you were required to have 5 VAC as input for an electronic device, what could you build to provide this voltage and how would you build it? Neatly sketch a picture of the device, and write an explanation of how it would work.

Answer 1

Answer:

In order to achieve 5 VAC out of 120 VAC voltage source from the wall outlet, we can install "Step-Down Transformer".

Explanation:

Voltage Source from the wall outlet in VAC = Vp  = 120

$\frac{Vp}{Vs} = \frac{Np}{Ns}$

 $\frac{Vs}$ = $\frac{(Vp)*(Ns)}{Np}$

By putting all values, pictorial topology is attached:

We found:

Vs =  5 VAC  Answer