Physics for IGCSE & O level - Magnets And Currents (Section 11 - No. 17)
What does a turns ratio of 2:1 indicate about a transformer?
Output voltage is twice the input voltage
Input voltage is twice the output voltage
Output voltage is half the input voltage
Input and output voltages are the same
คำอธิบาย
A turns ratio of 2:1 means the secondary (output) coil has twice the turns of the primary (input) coil.