Select Board & Class
investigatory project on full wave rectifier. how to do?
Explain Mod-3 Counter with circuit diagram and truth table.
plz define barrier potential.
A p-n photodiode is fabricated from a semiconductor with band gap of 2.8 eV. Can it detect a wavelength of 6000 nm?
To set up a common base transistor circuit and to study its input and output characteristic and tocalculate its current gain? answer soon its urgent.
how transistor works as an oscillator? explain clearly please.
investigatory project on To design an appropriate logic gate combination for a given truth table
working of an LC oscillator
Why can't we take one slab of p-type semiconductor and physically join it to another slab of n type semiconductor to get p-n junction?
explain transistor as an amplifier and a switch with derivation?
why photodiodes are used in reverse biased condition
how does zener diode act as voltage regulator
I want to make my project file on logic gates for final exams please tell me how to make & what is its procedure please tell urgently
Explain working of photodiode and zener diode?
Q) Explain the formation of depletion layer and potential barrier in a p-n junction ?
Explain how a p-type & n-type semiconductors are formed ????
what is the difference between lcd and led tv technology????????
wat is static and dynamic resistance ?
Draw the circuit diagram of an illuminated photodiode in reverse bias. How is photodiode used to measure light intensity?
The circuit diagram of an illuminated photodiode in reverse bias can be represented as
The greater the intensity of light, the greater is the number of photons falling per second per unit area. Thus, the greater the intensity of light, the greater is the number of electron−hole pairs produced at the junction. The photocurrent is, thus, directly proportional to the intensity of light. This can be used for measuring the intensity of incident light.
why is n-p-n transistor preferred over p-n-p transistor???
what is LED??? mention two advantages of LED over conventional lamps.
why p and n type semiconductors are electrically neutral?
which of the two, an a ammeter or a milliameter, has a higher resistance and why????
what is pn junction diode and its working
explain the working of a common emmiter npn transistor amplifier?
How does transistor act as an amplifier....???
plzzz explain the diagram also....plzz
what is drift current and diffusion current plz explain
what is mean by potential barrier and depletion layer.
What is current amplification factor???
plz explain input and output characteristics of transistor
effect of temperature on intrinsic semiconductor
please help me in my investigatory project its topic is to construct a switch using a transistor ana draw graph between input and output voltage and mark the cut off, saturation and active regiong . i need it by2 feb positively
Why does heavy doping in a Zener diode lead to a thin Depletion layer ?
explain transistor as a switch
Compare the energy band digram of conductors, insulators and semiconductors.
Why solar cell operates in fourth quadrant.
How to draw the input-output waveforms for different logic gates?
Explain zener diode?
The number of silicon atoms per m3 is 5 × 1028. This is doped simultaneously with 5 × 1022 atoms per m3 of Arsenic and 5 × 1020 per m3 atoms of Indium. Calculate the number of electrons and holes. Given that ni= 1.5 × 1016 m−3. Is the material n-type or p-type?
half & full wave rectifier
Which type of biasing gives a semiconductor diode very high resistance ?
draw V-I characteristic of a p-n junc. diode in a> forward bias
b> reverse bias
state how a full wave rectifier works?
transistor oscillator ??
Why reverse bias is measure in microampere but forward bias in milliampere?
Please,explain me the energy band diagrams for n and p-type semiconductors?
When p-n junction is forward biased how the depletion layer width decreases and in reverse biased how it increases???
plz tell me how to construct full wave rectifier for the project
why cant transistor be used as rectifier..?
why common emitter amplifier os preferred over common base amplifier?
Name the process responsible for depletion layer formation in p n junction?
Why should the n-Si wafer in solar cell be thin layered?
WRITE TWO CHARACTERISTICS OF MANGANIN WHICH MAKES IT SUITABLE FOR MAKING STANDARD RESISTANCES.
Explain the working of transistor as a switch?
Why is the conductivity of n-type semiconductor greater than that of the p-type semiconductor even when both of these have same level of doping?
How does the receptivity of (i) a conductor and (ii) a semiconductor vary with temperature? Give reason for each case.
Explain briefly with the hell) of a circuit diagram how V - I characteristics of a p-n junction diode are obtained in (i) forward bias, and (ii) reverse bias.
How does a light emitting diode (LED) work
Hello. I have to write a project report on 'transistor as a switch'. Please help.
Sir,can u explain working of transistor as an oscillator?
can two p-n junction diodes placed back to back as p-n-p transistor?
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Syllabus
investigatory project on full wave rectifier. how to do?
A) 1.5 ohm
B) 5 ohm
C) 6.67 ohm
D) 200 ohm
Explain Mod-3 Counter with circuit diagram and truth table.
Q. ​What the current through an ideal p-n junction diode shown in figure below :
plz define barrier potential.
A p-n photodiode is fabricated from a semiconductor with band gap of 2.8 eV. Can it detect a wavelength of 6000 nm?
To set up a common base transistor circuit and to study its input and output characteristic and tocalculate its current gain? answer soon its urgent.
how transistor works as an oscillator? explain clearly please.
investigatory project on To design an appropriate logic gate combination for a given truth table
working of an LC oscillator
Why can't we take one slab of p-type semiconductor and physically join it to another slab of n type semiconductor to get p-n junction?
explain transistor as an amplifier and a switch with derivation?
why photodiodes are used in reverse biased condition
how does zener diode act as voltage regulator
: 510
silicon atoms. if the number density of atoms in the silicon specimen is
28 3
510 atm/m then the no. of acceptor atoms in silicon per
cubic centimeter will be?
I want to make my project file on logic gates for final exams please tell me how to make & what is its procedure please tell urgently
Explain working of photodiode and zener diode?
Q) Explain the formation of depletion layer and potential barrier in a p-n junction ?
Q. Find the work done in increasing the volume of a soap bubble by 700% if its radius is R and surface tension is T. a bubble of radius 2 cm, is blown inside a cold drink using a straw. If the surface tension of liquid is 60 dyne/cm. Find the work done (in ergs) in blowing the bubble.
If W is the amount of work done in forming a soap bubble of volume V, then calculate the amount of work done in forming a bubble of volume 2V from the same solution.
A water film is fomed in between two parallel wires whose lengths are 10 cm, and placed at a distance 0.5 cm. apart. To increase the distance between the wires by 1mm. Find the work done (surface tension of water is 72 dyne/cm.) ?
Explain how a p-type & n-type semiconductors are formed ????
what is the difference between lcd and led tv technology????????
wat is static and dynamic resistance ?
Draw the circuit diagram of an illuminated photodiode in reverse bias. How is photodiode used to measure light intensity?
The circuit diagram of an illuminated photodiode in reverse bias can be represented as
The greater the intensity of light, the greater is the number of photons falling per second per unit area. Thus, the greater the intensity of light, the greater is the number of electron−hole pairs produced at the junction. The photocurrent is, thus, directly proportional to the intensity of light. This can be used for measuring the intensity of incident light.
why is n-p-n transistor preferred over p-n-p transistor???
what is LED??? mention two advantages of LED over conventional lamps.
why p and n type semiconductors are electrically neutral?
1)30 kΩ
2)3 kΩ
which of the two, an a ammeter or a milliameter, has a higher resistance and why????
what is pn junction diode and its working
explain the working of a common emmiter npn transistor amplifier?
Q. In a common emitter transistor circuit, the base current is 40 A, then is
(1) 2 V
(2) 0.2 V
(3) 0.8 V
(4) Zero
How does transistor act as an amplifier....???
plzzz explain the diagram also....plzz
and what is fermi level?
what is drift current and diffusion current plz explain
what is mean by potential barrier and depletion layer.
Q. In the circuit shown in figure the maximum output voltage is :
(1) 0 V
(2) 5 V
(3) 10 V
(4)
What is current amplification factor???
?
plz explain input and output characteristics of transistor
effect of temperature on intrinsic semiconductor
please help me in my investigatory project its topic is to construct a switch using a transistor ana draw graph between input and output voltage and mark the cut off, saturation and active regiong . i need it by2 feb positively
Why does heavy doping in a Zener diode lead to a thin Depletion layer ?
​Q28. Mobility of electrons in N-type Ge is 5000 cm2/volt sec and conductivity 5 mho/em. If effect of holes is negligible then impurity concentration will be :-
(1) 6.25 × 10​15​/cm3 (2) 9.25 × 1014/cm3 (3) 6 × 1013/cm3 (4) 9 × 1013/cm3
explain transistor as a switch
Q.37. Figure shows the practical realisation of a logic gate. Identify the logic gate
(1) NAND
(2) NOR
(3) XOR
(4) XNOR
Sol. Answer (1)
Compare the energy band digram of conductors, insulators and semiconductors.
Why solar cell operates in fourth quadrant.
How to draw the input-output waveforms for different logic gates?
Explain zener diode?
The number of silicon atoms per m3 is 5 × 1028. This is doped simultaneously with 5 × 1022 atoms per m3 of Arsenic and 5 × 1020 per m3 atoms of Indium. Calculate the number of electrons and holes. Given that ni= 1.5 × 1016 m−3. Is the material n-type or p-type?
half & full wave rectifier
Which type of biasing gives a semiconductor diode very high resistance ?
draw V-I characteristic of a p-n junc. diode in a> forward bias
b> reverse bias
Q. Explain how the depletion layer and the barrier potential are formed in a p-n junction diode.
Q. Draw a circuit diagram for use of NPN transistor as an amplifier in common emitter configuration. The input resistance of a transistor is 1000 ohm. On changing its base current by, 10A the collector current increases by 2 m A.
If a load resistance of 5K ohm is used in the circuit, calculate (i) the current gain & (ii) voltage gain of the amplifier.
Q. The output of an AND gate is connected to both the inputs a NAND gate. Draw logic circuit of this combination of gates and write its truth table.
Q. What is a Zener diode? How it is symbolically represented? With the help of a circuit diagram, explain the use Of Zener diode as a voltage stabiliser.
Q. With the help Of a suitable diagram. explain the formation of depletion region in a p-n junction. How does its width change when the junction is (i) forward biased? & (ii) reverse biased?
state how a full wave rectifier works?
(a) the semiconductor is n-type
(b) the conductivity is 320 m mho
(c) Both (a) and (b)
(d) None of the above
transistor oscillator ??
Why reverse bias is measure in microampere but forward bias in milliampere?
Please,explain me the energy band diagrams for n and p-type semiconductors?
When p-n junction is forward biased how the depletion layer width decreases and in reverse biased how it increases???
plz tell me how to construct full wave rectifier for the project
why cant transistor be used as rectifier..?
why common emitter amplifier os preferred over common base amplifier?
Name the process responsible for depletion layer formation in p n junction?
Why should the n-Si wafer in solar cell be thin layered?
WRITE TWO CHARACTERISTICS OF MANGANIN WHICH MAKES IT SUITABLE FOR MAKING STANDARD RESISTANCES.
Q.8 A sample of germanium is doped to the extent of 1014 donor atoms per cm3 and 7 × 1013 acceptor atoms per cm3. The resistivity of pure germanises at the temperature of the sample is 60 cm. Find the total conduction current density due to an applied electric field of 2 V cm–1. The electron and hole mobilities are given to be 3800 cm2 V–1 S–1 and 1800 cm2 V–1 S –1, respectively. (Ans. 52.3 mA cm–2)
Q.9 The energy gap in germanium is 0.75 eV. Compare the intrinsic conductivities of germanium at 300 K and 330 K. Take kB = 8.6 × 10 –5 eVK–1. (Ans. 3.74)
Explain the working of transistor as a switch?
Q. For the given circuit shown in fig, to act as full wave rectifier :- a.c. input should be connected across ........ and ....... the d.c. output would appear across ......... and .........
(1) A, C, B, D
(2) B, D, A, C
(3) A, B, C, D
(4) C, A, D, B
Why is the conductivity of n-type semiconductor greater than that of the p-type semiconductor even when both of these have same level of doping?
How does the receptivity of (i) a conductor and (ii) a semiconductor vary with temperature? Give reason for each case.
Explain briefly with the hell) of a circuit diagram how V - I characteristics of a p-n junction diode are obtained in (i) forward bias, and (ii) reverse bias.
How does a light emitting diode (LED) work
Hello. I have to write a project report on 'transistor as a switch'. Please help.
Sir,can u explain working of transistor as an oscillator?
can two p-n junction diodes placed back to back as p-n-p transistor?