ExamPlay Light Logo
Пријавите се

Physics for IGCSE & O level - Electricity (Section 6 - No. 6)

What is the frequency of the mains electricity in the United States?
50 Hz
60 Hz
110 V
230 V

Објашњење

The frequency of mains electricity in the US is 60 Hz.

Коментари (0)

Реклама