Worksheetsdiode
Total questions: 20
Worksheet time: 16mins
a crystal diode has..................
one pn junction
two pn junction
three pn junction
the forward voltage drop across a silicon diode is about
0.7v
2.5v
3v
a zener diode is used as
an amplifier
a rectifier
a voltage regulator
a zener diode is always ................connected
forward
reverse
either reverse or forward
the maximum efficiency of a half wave rectifier is .....
40.6%
81.2%
50%
the most widely used recrifier is................
half wave rectifier
centre tap full wave rectifier
bridge full wave rectifier
if the arrow of crystal diode symbol is positive with respect to bar,then diode is .............biased
reverse
forward
none
bridge rectifier has how many no of diodes
1
2
4
a device which converts ac signal to dc signal
amplifier
rectifier
transformeer
......................is a device which removes the ac component of rectifier output
filter
amplifier
voltage regulator
the ratio of rms value of ac component to the dc component in the rectifier output is called...............
maximum value
ripple factor
average value
the short name of inductor coil is
capacitor
choke
resistor
which diode has a sharp breakdown voltage
led
photodiode
zenerdiode
is the symbol of which diode
varactor
zenerdiode
LED
symbol of which diode
zenerdiode
varactor diode
pn diode
a pn junction that radiates energy as light instead of as as heat is called
LED
photo diode
zener diode
a photo diode is normally
forward bias
reverse bias
none
when the reverse voltage increases the junction capacitance
decreases
increases
constant
when the light increases, the reverse current in photo diode
increases
decreases
unaffected
......................diode is a PNPN device having two terminal
zener
varactor
shockley
