Answer:
Number of turns on the secondary coil of the adapter transformer is 10.
Explanation:
For a transformer,
[tex]\frac{V_{s} }{V_{p} } = \frac{N_{s} }{N_{p} }[/tex]
where [tex]V_{s}[/tex] is the voltage induced in the secondary coil
[tex]V_{p}[/tex] is the voltage in the primary coil
[tex]N_{s}[/tex] is the number of turns of secondary coil
[tex]N_{p}[/tex] is the number of turns of primary coil
From the given question,
[tex]\frac{487*10^{-3} }{120}[/tex] = [tex]\frac{N_{s} }{2464}[/tex]
⇒ [tex]N_{s}[/tex] = [tex]\frac{2462*487*10^{-3} }{120}[/tex]
= 9.999733
∴ [tex]N_{s}[/tex] = 10 turns
