Answer :
The statement 'If the coils of a buck-boost transformer are connected in parallel the voltages are added together' is False
Connecting the coils of a buck-boost transformer in parallel does not result in the voltages across the coils being added together. Each coil of a transformer is designed to operate at a specific voltage rating, and when connected in parallel, the voltages across each coil remain independent. Instead of adding voltages, connecting transformer coils in parallel affects impedance and current distribution.
The total impedance seen by the source and the current flowing through each coil depend on their individual characteristics and the parallel connection configuration. Therefore, while parallel connection of transformer coils can increase current capacity or provide redundancy, it does not directly combine the voltages across the coils.
