The turns ratio of the tapped step down...

Question 1 / 205eccefa4bacbc34ba4d480fb

Question 1 of 205eccefa4bacbc34ba4d480fb

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 110 volts were applied to terminals 'X1' and 'X3', what would be measured across 'H1' and 'H2'? See illustration EL-0082.

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🔍 Key Concepts

• Relationship between turns ratio and voltage ratio in transformers (V_1/V_2 = N_1/N_2) • How evenly spaced taps divide the total number of turns on the secondary winding • Direction of power flow when you energize a portion of the low‑voltage (X) winding and measure voltage on the high‑voltage (H) winding

💭 Think About

• First, figure out what fraction of the entire secondary winding you are using when you connect across terminals X1 and X3 in figure C. • Using the 4:1 turns ratio for the full winding (H1–H2 to X1–X4), work out the effective turns ratio between H1–H2 and the partial section X1–X3. • Once you know that new turns ratio, use it with the applied 110 V on X1–X3 to determine what voltage must appear across H1–H2.

✅ Before You Answer

• Confirm whether H1–H2 corresponds to the high‑voltage or low‑voltage side in a step‑down transformer. • Verify how many equal sections the secondary is divided into, and how many of those sections lie between X1 and X3. • After you compute the primary voltage, compare it with the choices and make sure the result is reasonable for a step‑down transformer being driven from its secondary (i.e., it will act as a step‑UP in this configuration).

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Question 1 of 20

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Question 1 / 205eccefa4bacbc34ba4d480fb

Question 1 of 205eccefa4bacbc34ba4d480fb

Back

Question 1 of 20

5eccefa4bacbc34ba4d480fb

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🔍 Key Concepts

💭 Think About

✅ Before You Answer

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