Question

Problem 76

Answer 1

Given information

Given:

Power   

The voltage required by the desk lamp is

The voltage converted by the transformer is   

 

 

 

Step-by-step explanation

Step 1.

(a) To check whether the transformer is step up or step down we need to compare the primary and secondary voltage-

Calculation:

 

and

 

Hence, 

The transformer is step down because