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What is binding energy of a hydrogen atom?
Concept: Mass Defect and Binding Energy
Which logic gate corresponds to the truth table given below?
|
A |
B |
Y |
|
0 |
0 |
I |
|
0 |
1 |
0 |
|
1 |
0 |
0 |
|
1 |
1 |
0 |
Concept: Digital Electronics and Logic Gates
Explain the elementary idea of an oscillator with the help of block diagram
Concept: Oscillators
In a semiconductor, acceptor impurity is.................................
- antimony
- indium
- phosphorous
- arsenic
Concept: Properties of Solids: Electrical Properties >> Applications of n-type and p-type Semiconductors
What are α and β parameters for a transistor? Obtain a relation between them.
Concept: Transistor and Characteristics of a Transistor
The output of NOR gate is high, when _______.
Concept: Digital Electronics and Logic Gates
Explain the formation of energy band diagram in case of conductor and semiconductor.
Concept: Energy Bands in Solids
Colour of light emitted by LED depends upon__________________ .
- its forward bias
- its reverse bias
- the band gap of the material of semiconductor
- its size
Concept: Special Purpose P-n Junction Diodes
In case of transistor oscillator, to obtain sustained oscillations, the product of voltage gain without feedback and feedback factor should be __________.
Concept: Oscillators
Explain the working of P-N junction diode in forward and reverse biased mode.
Concept: Semiconductor Diode
When a hole is produced in P-type semiconductor, there is _______.
Concept: Properties of Solids: Electrical Properties >> Applications of n-type and p-type Semiconductors
When a p-n-p transistor is operated in saturation region, then its ______.
(A) base-emitter junction is forward biased and base-collector junction is reverse biased.
(B) both base-emitter and base-collector junctions are reverse biased.
(C) both base-emitter and base-collector junctions are forward biased.
(D) base-emitter junction is reverse biased and base-collector junction is forward biased
Concept: Transistor and Characteristics of a Transistor
If the charge on the condenser of 10°F is doubled, then the energy stored in it becomes __________
Concept: Energy Bands in Solids
The logic gate which produces LOW output when one of the input is HIGH and produces
HIGH output only when all of its inputs are LOW is called _______.
(A) AND gate
(B) OR gate
(C) NOR gate
(D) NAND gate
Concept: Digital Electronics and Logic Gates
Distinguish between intrinsic and extrinsic semiconductor. (Give any two points).
Concept: Extrinsic Semiconductor
Draw the schematic symbols for AND, OR, NOT and NAND gate
Concept: Digital Electronics and Logic Gates
Explain the working of transistor as a switch.
Concept: Transistor as a Switch
The width of depletion region of p-n junction diode is _______.
(A) 0.5 nm to 1 nm
(B) 5 nm to 10 nm
(C) 50 nm to 500 nm
(D) 500 nm to 1000 nm
Concept: Special Purpose P-n Junction Diodes
State its any ‘two’ uses of photodiode.
Concept: Special Purpose P-n Junction Diodes
Draw a circuit diagram for studying the input and output characteristics of a n-p-n transistor in common emitter configuration. Using the circuit, explain how input, output characteristics are obtained
Concept: Junction Transistor >> Transistor as an Amplifier (Ce-configuration)
