Physics for IGCSE & O level - Magnets And Currents (Section 6 - No. 14)
What happens if the number of turns on the secondary coil is greater than the number of turns on the primary coil of a transformer?
The voltage is stepped down.
The voltage is stepped up.
The voltage remains the same.
The current increases.
คำอธิบาย
The voltage is stepped up.