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List of top Physics Questions on Semiconductor electronics: materials, devices and simple circuits asked in JKCET
A zener breakdown occurs in a zener diode when
JKCET - 2019
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
In a semiconductor, the conductivity increases with the increase in temperature due to
JKCET - 2019
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
The intrinsic carrier concentration of silicon sample at
300
K
300\, K
300
K
is
1.5
×
1
0
16
m
−
3
1.5 \times 10^{16}\, m^{-3}
1.5
×
1
0
16
m
−
3
. What is the density of minority carrier ? (after doping, the number of majority carriers is
5
×
1
0
20
m
−
3
5 \times 10^{20}\, m^{-3}
5
×
1
0
20
m
−
3
)
JKCET - 2018
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
An extrinsic semiconductor with electrons as majority carriers can be obtained by doping
G
e
Ge
G
e
or
S
i
Si
S
i
with
JKCET - 2017
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
In an
n
−
p
−
n
n-p-n
n
−
p
−
n
transistor,
p
p
p
is
JKCET - 2015
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
If the forward bias voltage in a
p
−
n
p-n
p
−
n
junction diode is decreased, the length of depletion region will
JKCET - 2015
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
A zener diode is used as
JKCET - 2014
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
For transistor the value of
β
\beta
β
is
50
50
50
then, the value of
α
\alpha
α
is
JKCET - 2014
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
What is the order of the reverse saturation current before break down in a Zener diode?
JKCET - 2012
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
Which logic gate does the following truth table represent?
JKCET - 2012
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
Which of the following is a semiconductor?
JKCET - 2012
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
The following figure represents
JKCET - 2010
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
In a transistor, the base is
JKCET - 2009
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
When a
p
−
n
p-n
p
−
n
junction diode is connected in forward bias its barrier potential
JKCET - 2008
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
An intrinsic semiconductor at
0
K
0\,K
0
K
temperature behaves like
JKCET - 2008
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
In breakdown region, a Zener diode behaves as a
JKCET - 2007
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits
What is the name of the level formed due to impurity atom in
p
p
p
-type in the forbidden gap?
JKCET - 2003
JKCET
Physics
Semiconductor electronics: materials, devices and simple circuits