A multipurpose transformer has a secondary coil with several points at which a v

Question

A multipurpose transformer has a secondary coil with several points at which a voltage can be extracted, giving outputs of 6.00, 13.5, and 25 V. The input voltage is 110 V to a primary coil of 330 turns. What are the numbers of turns in the parts of the secondary used to produce the output voltages?
Ns (for 6.00 V) =  
Ns (for 13.5 V) =  
Ns (for 25.0 V) =

If the maximum input current is 2.20 A, what are the maximum output currents (each used alone)?
(in A) Is (for 6.00 V) =  
(in A) Is (for 13.5 V) =  
(in A) Is (for 25.0 V) =  

Explanation / Answer

Vp/Vs = Np/Ns

for 6

110/6 = 330/Ns

Ns = 18

for 13.5
Ns = 40.5

Ns = 2688.889

for 25v

110/25 = 330/Ns

Ns = 75

Ns/Np = ip/is = Vs/Vp

for 6

110/6 = is /2.2

is = 40.33

for13.5

110/13.5 = is/2.2

is = 17.925

for 25
110/25 = is/2.2

is = 9.68

Ns = 1452

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