- #1

SAT2400

- 69

- 0

**Secondary voltage and current??**

## Homework Statement

A load resistor is placed across the secondary terminals of a step-down transformer with a turn ratio of 4:1. If the primary voltage and current are 120V and 1A., What will be the secondary voltage and current? Assume 100% efficiency.

## Homework Equations

Ns/Np = Vs/Vp = Ip/Is

## The Attempt at a Solution

Ns should be 4,,right??

but If Ns = 4..then, I don't get the right answer...

why is Np 4?? Np is primary isn't it??

The answers were 30v and 4A.