【判断题】Stress refers to the feature that is determined solely by the amplitude of the vibration of the sound-wave.()
【单选题】电磁式中间继电器实质上是一种电磁式( )继电器
【判断题】1-2 如果电路某两点的电位都很高,则该两点间的电压也一定很高。
【简答题】Amplitude is the _______________ voltage reached by the signal. It is measured in __________, V. _______________ is another name for amplitude.
【单选题】What's the amplitude and frequency? T:5us/div V:250mv/div ( )
A.
Amplitude=5v、 Frequency=10KHz
B.
Amplitude=0.5v、 Frequency=100KHz
C.
Amplitude=1v、 Frequency=100Hz
D.
Amplitude=1v、 Frequency=10KHz