Answer:
360 V
Explanation:
We can use the transformer equation:
[tex]\frac{V_p}{N_p}=\frac{V_s}{N_s}[/tex]
where
[tex]V_p[/tex] is the primary (input) voltage
[tex]N_p[/tex] is the number of turns in the primary coil
[tex]V_s[/tex] is the secondary (output) voltage
[tex]N_s[/tex] is the number of turns in the secondary coil
In this problem,
[tex]V_p = 120 V\\N_p = 25\\N_s = 75[/tex]
Substituting into the equation, we can find the output voltage:
[tex]V_s = N_s \frac{V_p}{N_p}=(75)\frac{120}{25}=360 V[/tex]
