The voltage in the power lines running in the lane behind your house or apartmen

Question

The voltage in the power lines running in the lane behind your house or apartment will typically be at a potential of something like 7200 volts. The standard household potential is 120 volts. Most of you, if you look at the power lines outside behind your living quarters, will notice a transformer box located near the top of one of the poles. Below, you will see a photo of the one behind my house.
Which of the following would be an acceptable ratio of the number of primary vs, secondary loops in the transformer (Np:Ns)?

a. 200:10
b. 10:200
c. 3600:60
d. 120:7200
e. 120:1
f. 1888:40

Explanation / Answer

V is proportional to N

hence 7200/120 =3600:60

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.