Physics for IGCSE & O level - Magnets And Currents (Section 3 - No. 12)
In a transformer, if the secondary coil has more turns than the primary coil, what happens to the voltage?
The voltage increases.
The voltage decreases.
The voltage remains the same.
The current increases.
Vysvětlení
If the secondary coil has more turns, the voltage is stepped up, meaning it increases.