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Electronics Set 5
Results
#1.
The number of diodes in a bridge rectifier is
4
4
2
2
3
3
5
5
#2.
When a PN junction is reverse biased, the depletion region is
Widened
Widened
Narrowed
Narrowed
Normal
Normal
No change
No change
#3.
A potential barrier of 0.7 V exist across PN junction made from
Silicon
Silicon
Germanium
Germanium
Indium
Indium
Gallium
Gallium
#4.
The reverse current through PN junction is
Infinite
Infinite
Zero
Zero
Less than forward current
Less than forward current
Greater than forward current
Greater than forward current
#5.
Photocells are used for
Security system
Security system
Counting system
Counting system
Automatic door system
Automatic door system
All of these
All of these
#6.
Transistor has
2 regions
2 regions
3 regions
3 regions
4 regions
4 regions
1 region
1 region
#7.
A complete amplifier circuit made on a silicon chip and enclosed in a small capsule is called
Diode
Diode
Inductor
Inductor
Resistor
Resistor
Operational amplifier
Operational amplifier
#8.
Which one of the following is called fundamental gate
NOR gate
NOR gate
NOT gate
NOT gate
NAND gate
NAND gate
Exclusive OR gate
Exclusive OR gate
#9.
A complete amplifier circuit made on a silicon chip and enclosed in a small capsule is called
Diode
Diode
Inductor
Inductor
Resistor
Resistor
Operational amplifier
Operational amplifier
#10.
Process of conversion of DC to AC is called
Rectification
Rectification
Amplification
Amplification
Oscillation
Oscillation
Modulation
Modulation
Finish
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