問題詳情

35. If the r.m.s. value of the voltage from a standard electrical outlet in Britain is 240 volts, then theamplitude is about:
(A) 240 volts
(B) 170 volts
(C) 340 volts
(D) 480 volts

參考答案

答案：C
難度：非常困難0
統計：A(1),B(0),C(0),D(0),E(0)