Exercise: Diodes And Applications

Questions for: Diodes And Applications

When matching polarity connections have been made and the potential difference (PD) is above 0.7 V, the diode is considered to be:
A:
not working
B:
forward biased
C:
reverse biased
D:
an open switch
Answer: B
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The dc current through each diode in a bridge rectifier equals:
A:
the load current
B:
half the dc load current
C:
twice the dc load current
D:
one-fourth the dc load current
Answer: A
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What is wrong with this diode?

A:
open
B:
short
C:
nothing
D:
not enough data
Answer: C
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What circuit activity may shift a characteristic curve so that diode operating points are different?
A:
higher power (heat)
B:
higher resistance
C:
lower voltage
D:
lower current
Answer: A
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Which type of transformer is required to create a 180 degree input to a rectifier?
A:
center-tapped secondary
B:
step-down secondary
C:
stepped-up secondary
D:
split winding primary
Answer: A
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