1 ) The
capacitance of a reverse-biased pn Junction ____ with
increase of reverse voltage .
A ) Decrease
,
B ) Increase
,
C ) Does not
Change ,
Correct answer : - A ) Decrease ,
2 ) A _____ source can form an amplifier along with a load resistor .
A ) current -dependent Current ,
B ) voltage-dependent current ,
C ) current -dependent Voltage ,
D ) Volatge-dependent Voltage ,
Correct answer : - B ) voltage-dependent current ,
3 ) The small-signal models of npn and pnp transistors are _________ .
A ) Identical ,
B ) Different ,
Correct answer : - A ) Identical ,
4 ) Under _________ , the pn junction carries a current that is exponential function of the applied voltage .
A ) forward bias ,
B ) Reverse Bias ,
C ) Equillibrium ,
D ) None of above ,
Correct answer : - A ) forward bias ,
5 ) Consider the diode to follow constant voltage model . What is the value of current flowing through the resistor .
A ) 2 Amperes
,
B ) 1 Ampere
,
C ) 0 Ampere
,
D ) Current
is infinite ,
Correct answer : - B ) 1 Ampere ,
6 ) In this
circuit two real diodes are connected in parallel to each other . Green diode
has half the cross-section area as that of red diode , as shown in the figure . "
Vf " is the voltage across diode when it is operating under forward bias
condition . What can we say about the values of currents I1 & I2 .
Correct answer : - A ) .
7 ) Consider the diode to follow constant voltage model . What is the value of current flowing through the resistor .
A ) 2 Amperes
,
B ) 1 Ampere
,
C ) 0 Ampere
,
D ) Current
is infinite ,
Correct answer : - A ) 2 Amperes ,
8 ) What is
Vout for this circuit ? Both diodes are
ideal diodes .
A ) Option a
,
B ) Option b
,
C ) Option c
,
D ) Option d
,
Correct answer : - D ) Option d ,
9 ) In the
Circuit , D1 and D2 are ideal diodes . The values of
ID1 and ID2 are _________ .
A ) Zero Each
,
B ) ID1=0,
ID2=4mA ,
C ) ID1=4mA,
ID2=0 ,
D ) 4mA Each
,
Correct answer : - B ) ID1=0, ID2=4mA ,
10 ) Which of
the following full-wave rectifier circuit is the correct one .
A ) Circuit 1
,
B ) Circuit 2
,
C ) Circuit 3
,
D ) Circuit 4
,
Correct answer : - B ) Circuit 2 ,
