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WorksheetsBasic Electronics concepts
Total questions: 20
Worksheet time: 10mins
What is "10011010" in decimal system:
154
156
162
148
GaAs is which type of semiconductor and it's LEDs emits light in which region?
Direct band gap, Ultraviolet
Indirect band gap, Ultraviolet
Direct band gap, infrared
Indirect band gap, infrared
Why transistor is called as bi-polar:
Due to p and n type
Due to two transistor
Due to two poles
Due to holes and electrons as carrier
Identify the op- Amp circuits of figure 1 and figure 2 respectively:
Integrator, subtractor
Subtractor, Integrator
Subtractor, differentiator
Adder, Subtractor
State whether the statement is correct or incorrect : "Tunnel diode can be used for microwave RF application."
Correct
Incorrect
Which diode shows negative resistance region?
LED
pn junction diode
Zener diode
Tunnel diode
Statement "In Combinational circuits, present output depends upon present input as well as past output.
False
True
Which is called a carrier wave?
Low frequency wave
High wavelength wave
High frequency wave
None of these
Input characteristics of MOSFET is called :
Direct characteristics
Drain characteristics
Indirect characteristics
Transfer characteristics
Formula for CMRR (Common Mode Rejection Ratio) in Op-Amp is :
Where, Ad= differential gain of the amplifier Ac = common-mode gain of the amplifier
Ad/Vc
Ad/Ac
Ac/Vc
Vc/Ac
A flip flop stores data of:
2 byte
1 bit
2 bit
1 byte
Negative feedback is also called as:
Generative feedback
No one is correct
Degenerative feedback
Direct feedback
Universal gates are:
NAND, NOR, NOT
NAND, XOR, NOT
NAND, XNOR, NOT
NAND, OR, NOT
Order of the width of depletion region in a pn junction diode with different biasing conditions:
Forward < No bias < reverse bias
No bias > Forward > reverse bias
Forward < No bias > reverse bias
Forward > No bias > reverse bias
A truth table is shown in the figure. Identify the name of the logic gate?
NOT
XOR
NOR
NAND
Schotky diode is used for:
Can't be used as switching purpose
Low frequency switching
High frequency switching
None of these
What is use of buffer amplifier?
To isolate the oscillator from succeeding stage
Give very high carrier frequency
Give modulated wave
None of these
In which feedback the overall gain reduces :
Positive feedback
Negative feedback
No feedback
None of the above
Statement:
"For FETs (Field Effect Transistors) the relationship between input and output variable is linear."
False
True
Which statement is wrong
for ideal Op-Amp ?
Infinite voltage gain
Zero output impedance
Infinite bandwidth
Zero input impedance
