Electronic Principles
At cut off, the Q point is at

lower end of the load line
middle of the load line
upper end of the load line
None of these
infinity

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Electronic Principles
The period of a waveform is:

the time required for the voltage to rise from 10% to 90% of the peak amplitude
the number of cycles completed in one second
the time required to complete one full cycle
None of these
equal to 0.707 times the peak amplitude

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