In a linear variable differential transformer, the secondary windings are connected in what arrangement?

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Multiple Choice

In a linear variable differential transformer, the secondary windings are connected in what arrangement?

Explanation:
The two secondary windings in an LVDT are connected in series and arranged with opposite polarity (series-opposed). This setup makes the same current flow through both windings, so at the center position their induced voltages cancel and the output is zero. When the core moves, the coupling to one winding increases while the other decreases, creating a differential voltage across the series pair that is proportional to displacement. Connecting them in parallel would not produce a clean, position-dependent signal, and star or delta are three-phase configurations that don’t apply here.

The two secondary windings in an LVDT are connected in series and arranged with opposite polarity (series-opposed). This setup makes the same current flow through both windings, so at the center position their induced voltages cancel and the output is zero. When the core moves, the coupling to one winding increases while the other decreases, creating a differential voltage across the series pair that is proportional to displacement. Connecting them in parallel would not produce a clean, position-dependent signal, and star or delta are three-phase configurations that don’t apply here.

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