What item of test equipment contains horizontal and vertical channel amplifiers?
An ohmmeter
A signal generator
An ammeter
An oscilloscope✓الإجابة الصحيحة
الشرح
A time-domain display deflects its trace in two axes, so it contains a vertical channel amplifier for the input signal and a horizontal channel amplifier driven by the timebase or an external input. Meters and signal generators have no such pair of deflection channels.