Answer:
The pair of terminals to produce an output voltage of 8V are K and M.
Explanation:
A transformer is an electronic device that can be used to increase or decrease an output voltage. It consists of secondary and primary coils, and operates on the principle of induction.
[tex]\frac{V_{s} }{V_{p} }[/tex] = [tex]\frac{N_{s} }{N_{p} }[/tex]
where: [tex]V_{s}[/tex] is the voltage in the secondary coil, [tex]V_{p}[/tex] is the voltage in the primary coil, [tex]N_{s}[/tex] is the number of turns in the secondary coil and [tex]N_{p}[/tex] is the number of turns in the primary coil.
In the question, let us combine the number of turns in the secondary coil. So that,
[tex]N_{s}[/tex] = 15 + 5 = 20
[tex]\frac{V_{s} }{200}[/tex] = [tex]\frac{20}{500}[/tex]
[tex]V_{s}[/tex] = [tex]\frac{4000}{500}[/tex]
= 8
[tex]V_{s}[/tex] = 8V
For the output voltage to be equal to 8V, the pair of terminals required are K and M.
