ATT Week 5 Exam QUESTIONS AND CORRECT ANSWERS

ATT Week 5 Exam QUESTIONS AND
CORRECT ANSWERS
What is the purpose of a diode limiter circuit? - CORRECT ANSWER To limit the amplitude of
the input



Limiting action occurs in a series limiter when the ____________ - CORRECT
ANSWER Diode is reverse biased



What, if anything, happens to the output waveform when a negative bias is added to a clamper circuit?
- CORRECT ANSWER The clamp point is lowered



When does the capacitor in a clamper circuit have a fast charge path? - CORRECT
ANSWER When the diode is forward biased



The purpose of a diode clamper circuit is to ___________ - CORRECT ANSWER Add a DC
level to an AC signal



Emitter current is equal to the _________ - CORRECT ANSWER Base current plus the
collector current



The thin and lightly doped element in a transistor allowing most current carriers to pass on is referred
to as the ________ - CORRECT ANSWER Base



The PN junction of a transistor that is forward biases has __________ resistance - CORRECT
ANSWER Low



A reverse biased PN junction has ___________ - CORRECT ANSWER High resistance



Cutoff occurs when the base to ___________ - CORRECT ANSWER Emitter PN junction
become reverse biased



A transistor that is cutoff acts like ________ - CORRECT ANSWER It's open