Why LVDT have secondary windings connected in differential

1. Higher out put
2. Based on the out put voltage-/+, helps to identify the
direction of displacement
3. To establish a null/ reference point



Why LVDT have secondary windings connected in differential 1. Higher out put 2. Based on the out..

Answer / sandeep

the answer is 2&3?. in one of the book i found choice 1..
..Please justify

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