What is the Turns ratio for 138000 (primary) and 19900 (secondary)?

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Multiple Choice

What is the Turns ratio for 138000 (primary) and 19900 (secondary)?

Explanation:
Turns ratio is the comparison of how many turns are on the primary relative to the secondary. With 138000 turns on the primary and 19900 on the secondary, divide 138000 by 19900 to get about 6.94. This means the primary has roughly 6.9 times as many turns as the secondary, so the turns ratio is about 6.9:1. This indicates a step-down action, since more primary turns yield a higher primary voltage and a lower secondary voltage. The other ways to write it either invert the order (secondary to primary) or present the exact raw ratio without simplifying; the chosen form matches the standard primary:secondary expression and a practical rounded value.

Turns ratio is the comparison of how many turns are on the primary relative to the secondary. With 138000 turns on the primary and 19900 on the secondary, divide 138000 by 19900 to get about 6.94. This means the primary has roughly 6.9 times as many turns as the secondary, so the turns ratio is about 6.9:1. This indicates a step-down action, since more primary turns yield a higher primary voltage and a lower secondary voltage. The other ways to write it either invert the order (secondary to primary) or present the exact raw ratio without simplifying; the chosen form matches the standard primary:secondary expression and a practical rounded value.

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