VISUAL  PHYSICS  ONLINE

6     ELECTROMAGNETISM

P60 001

An AC potential difference is transmitted at 33 000 V for a household potential difference of 240 V.

What would be primary / secondary turns ratio for a transformer which would do this?

The current in the household circuit was 10.0 A. What current is drawn from the high voltage line?

 

View solution below only after you have completed the answering the question.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Solution

A transformer is a device for either increasing or decreasing an AC voltage.

 

 

Ideal Transformer

 

                       potential differences

                            conservation of energy

                         currents