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WorksheetsMPHS 0009 advanced electronics Q1
Total questions: 10
Worksheet time: 5mins
What are the four components of a basic power supply unit?
SATA Cord, VGA Cord, CPU, MB Cord
Transformer, Rectifier, Filter, Regulator
Transformer, Control Unit, Power Connector, Regulator
C-Filter, RC-Filter, Series Regulator, Shunt Regulator
Which circuit in the power supply converts low voltage AC to pulsating DC?
Transformer
Rectifier
Filter
Voltage Regulator
Transformer works on higher frequency has
Lower size
Larger size
Does not depends on the size
depends on whether the transformer is step up or step down
What is the BJT small signal model used for?
To analyze and design electronic circuits using field-effect transistors
To analyze and design electronic circuits using bipolar junction transistors.
To control the speed of a DC motor
To measure the temperature of a semiconductor material
In h parameters, the amplification factor is represented by
h re
h fe
h fb
Depends upon the biasing
Field effect transistor and transistor are
Voltage controlled and current controlled devices respectively
Current controlled and voltage controlled devices respectively
Both are voltage controlled
Both are current controlled
In MOSFET, the heavily doped region(s) is(are)
Substrate
Source and drain terminals
Drain region
Gate region
For oscillator, following feedback is required
None of the options
Any kind of feedback where A. Beta =0
Negative
Positive
Due to negative feedback
Band width decreases
Band width increases
Remains Constant
Band width will depend on the input voltage
The disadvantage of using transformer for coupling the amplifier is
dc isolation is not possible
ac isolation is not possible
Band width can not be tuned
It affects the biasing
