Physics for IGCSE & O level - Magnets And Currents (Section 1 - No. 34)
Which of the following best describes the relationship between voltage and current in an ideal transformer?
Voltage and current are directly proportional.
Voltage and current are inversely proportional.
Voltage and current are unrelated.
Voltage is constant, and current varies.
Giải thích
Voltage and current are inversely proportional.