A transformer is hooked up to a voltage of 100,000 V. The number of turns in the primary is 41,667 turns and the number of turns in the secondary... is 50 turns. What is the voltage coming out of the transformer? Is this a step up or step down transformer? ALSO, where would you expect t find this voltage in your house?

Expert Answers

An illustration of the letter 'A' in a speech bubbles

In a transformer if voltage and number of turns in primary are Vp and Np respectively and voltage and number of turns in secondary are Vs and Ns respectively,

Vs/Vp = Ns/Np

Therefore voltage coming out, voltage in secondary is,

Vs/100000 = 50/41667

Vs = 120 V

The output voltage...

Unlock
This Answer Now

Start your 48-hour free trial to unlock this answer and thousands more. Enjoy eNotes ad-free and cancel anytime.

Start your 48-Hour Free Trial

In a transformer if voltage and number of turns in primary are Vp and Np respectively and voltage and number of turns in secondary are Vs and Ns respectively,

Vs/Vp = Ns/Np

Therefore voltage coming out, voltage in secondary is,

Vs/100000 = 50/41667

Vs = 120 V

The output voltage is 120 V.

This is a step down transformer, since the number of coils in secondary are less than primary and voltage is also less in primary.

This is the supply voltage to domestic places in USA. So you find this voltage in the main circuit board of your home.

 

Approved by eNotes Editorial Team