BITSAT SERIES Physics
Applications Of Diode
7 previous year questions.
Volume: 7 Ques
Yield: Medium
High-Yield Trend
1
2018 1
2017 1
2015 1
2013 1
2011 2
2010 Chapter Questions 7 MCQs
01
PYQ 2010
medium
physics ID: bitsat-2
A transistor has a base current of 1mA and emitter current 90mA. The collector current will be
1
90mA
2
1mA
3
89mA
4
91mA
02
PYQ 2010
medium
physics ID: bitsat-2
A d.c. battery of V volts is connected to a series combination of a resistor R and an ideal diode D as shown in the figure below. The potential difference across R will be 
1
2V when diode is forward biased
2
Zero when diode is forward biased
3
V when diode is reverse biased
4
V when diode is forward biased
03
PYQ 2011
medium
physics ID: bitsat-2
In a semiconductor diode, the barrier potential offers opposition to:
1
holes in P-region only
2
free electrons in N-region only
3
majority carriers in both regions
4
minority carriers in both regions
04
PYQ 2013
medium
physics ID: bitsat-2
Transfer characteristics (output voltage vs input voltage ) for a base biased transistor in CE configuration is as shown in the figure. For using transistor as a switch, it is used 
1
in region (III)
2
both in region (I) and (III)
3
in region (II)
4
in region (I)
05
PYQ 2015
medium
physics ID: bitsat-2
In transistor amplifier, the audio signal voltage across the collector resistance of is . If the base resistance is and the current amplification of the transistor is , the input signal voltage is
1
2 mV
2
3 mV
3
10 mV
4
0.1 mV
06
PYQ 2017
medium
physics ID: bitsat-2
In the circuit shown below, V(t) is the sinusoidal voltage source, the voltage drop VAB(t) across the resistance R is 
1
is half wave rectified
2
is full wave rectified
3
has the same peak value in the positive and negative half cycle
4
has different peak values during positive and negative half cycle
07
PYQ 2018
medium
physics ID: bitsat-2
What is the voltage gain in a common emitter amplifier where input resistance is 3Ξ©, load resistance 24Ξ©, and Ξ² = 0.6?
1
8.4
2
4.8
3
2.4
4
480