The turns ratio of the tapped step-down...

Question 1 of 2921866636eed28f7522a1c51dcb6

The turns ratio of the tapped step-down transformer shown in figure "C" of the illustration is four to one and all taps are evenly spaced. If 120 volts were applied to terminals "H1" and "H3", what would appear at "X1" and "X2"? Illustration EL-0082

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Question 1 of 29218

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🔍 Key Concepts

• Evenly spaced taps on a winding mean each section has the same number of turns. • Overall turns ratio is 4:1 (primary:secondary), so the full‑winding voltage ratio must also be 4:1. • Voltage between any two tap points is proportional to the fraction of total turns you are using on that side.

💭 Think About

• From H1 to H3, what fraction of the entire primary winding (H1 to H4) are you actually using, given that the taps are evenly spaced? • If that fraction of the primary has 120 V across it, what would the voltage be across the entire primary from H1 to H4? • Using the 4:1 ratio, what is the voltage across the entire secondary (X1 to X4), and then what fraction of that total appears between X1 and X2 (only one section out of all the equal sections)?

✅ Before You Answer

• Be sure you first find the equivalent full‑primary voltage (H1–H4), not the secondary directly from 120 V. • Confirm how many equal sections exist between the taps on the primary and on the secondary. • After finding the full‑secondary voltage, divide it correctly according to the number of secondary sections between X1 and X4.