1. Tardigrade
  2. Question
  3. Physics
  4. A power transmission line feeds input power at 2400 V to a step down transformer with its primary windings having 4000 turns. What should be the number of turns in the secondary windings in order to get output power at 240 V ?

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. A power transmission line feeds input power at $2400\,V$ to a step down transformer with its primary windings having $4000$ turns. What should be the number of turns in the secondary windings in order to get output power at $240 \,V $?

Alternating Current

Solution:

$\frac{ E _{ s }}{ E _{ p }}=\frac{ N _{ s }}{ N _{ p }}$
$E _{ p }=2400$
$N _{ p }=4000$
$E _{ s }=240$
$N _{ s }=?$
$\frac{240}{2400}=\frac{ N _{ s }}{4000}$
$N _{ s }=400$