plz help urgently?

Question

Negative clipping of an output signal occurs when the
A. output impedance is too high.
B. input impedance is too high.
C. input amplitude is too high.
D. power supply voltage is too high.

Answer 1

"Clipping" refers to distortion of a signal when it exceeds a threshold; often, all readings that exceed the threshold are displayed as being at the threshold. "Negative clipping" just refers to clipping at the minimum value of the signal. It is generally caused by an amplitude that exceeds the device's measurement range, so the answer is C.