Discussion
The distortion that appears at the handover between the two devices of a class B stage is called ______ distortion.
Answer: A
This is crossover distortion, worst at small signals where the step is a large fraction of the output. Harmonic and intermodulation distortion are measures of distortion generally rather than mechanisms, and diagonal clipping is a detector defect in an AM receiver. That this distortion grows relatively worse as the signal falls is the reverse of most mechanisms, and it is why class B sounds poor at low volume until the bias is added. Most errors here come from carrying a result across from a neighbouring case where it does not hold.
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