Answer to Question #151498 in Electricity and Magnetism for Bilal

Question

The input voltage to a transformer is 24 V a.c. and the output voltage is 6.0 V. The input coil has 720 turns
How many turns are on the output coil?

Answer 1

Answer

Relationship between input and output voltage and number of turns is given by

$\frac{V_p}{V_s}=\frac{N_p}{N_s}$

turns are on the output coil

$N_s=\frac{N_p V_s}{V_p}=\frac{720\times6}{24}=180$