Quiz on electronics
Electronics Knowledge Quiz
Test your knowledge of electronics with this engaging quiz! Enhance your understanding of diodes, transistors, digital systems, and more. Whether you are a beginner or an expert, challenge yourself and see how much you really know.
- 26 intriguing questions
- Multiple choice format
- Instant feedback on your answers
A crystal diode has ………
One pn junction
Two pn junctions
Three pn junctions
None of the above
The reverse current in a diode is of the order of ……………….
KA
MA
μA
A
A crystal diode is used as ……………
An amplifier
A rectifier
An oscillator
A voltage regulator
If the temperature of a crystal diode increases, then leakage current ………..
Remains the same
Decreases
Increases
Becomes zero
A crystal diode is a …………… device
Non-linear
Bilateral
Linear
None of the above
A zener diode has ………..
One pn junction
Two pn junctions
Three pn junctions
None of the above
A zener diode is used as …………….
An amplifier
A voltage regulator
A rectifier
A multivibrator
The ripple factor of a half-wave rectifier is …………………
2
1.21
2.5
0.48
The maximum efficiency of a half-wave rectifier is ………………..
40.6 %
81.2 %
50 %
25 %
A transistor has …………………
One pn junction
Two pn junctions
Three pn junctions
Four pn junctions
The element that has the biggest size in a transistor is ………………..
Collector
Base
Emitter
Collector-base junction
In a npn transistor, ……………. Are the minority carriers
Free electrons
Holes
Donor ions
Acceptor ions
The most commonly used transistor arrangement is …………… arrangement
Common emitter
Common base
Common collector
None of the above
BC 147 transistor indicates that it is made of …………..
Germanium
Silicon
Carbon
None of the above
The arrow in the symbol of a transistor indicates the direction of ………….
Electron current in the emitter
Electron current in the collector
Hole current in the emitter
Donor ion current
A heat sink is generally used with a transistor to …………
Increase the forward current
Decrease the forward current
Compensate for excessive doping
Prevent excessive temperature rise
In a CE configuration, an emitter resistor is used for ……
Stabilization
Ac signal bypass
Collector bias
Higher gain Answer : 1
The binary number 10101 is equivalent to decimal number …………..
19
12
27
21
The universal gate is ………………
NAND gate
OR gate
AND Gate
None of the above
The NOR gate is OR gate followed by ………………
AND gate
NAND gate
NOT gate
None of the above
A device which converts BCD to seven segments is called ……..
Encoder
Decoder
Multiplexer
None of these
For the X-gate in the given A as input, the output will be ………..
0
1
A
A'
The number of digits in octal system is ………
8
9
7
10
Decimal 43 in hexadecimal and BCD number system is respectively……. and ……..
B2 and 01000011
2B and 01000011
2B and 00110100
B2 and 01000100
The greatest negative number which can be stored is 8 bit computer using 2’s complement arithmetic is ……..
256
128
255
127
The basic storage element in a digital system is ………….
Flipflop
Counter
Multiplexer
Encoder
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