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Is there any junction in conductor ?
ARUL MOZHI
- Jan 22nd, 2012
No there is no junction in conductor. because its not semi-conductor. only semi-conductor contains junction
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What are semiconductor devices
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sukisudha- Member Since Oct-2007 | Nov 21st, 2007
- there are three types of materials. they are conductor , semi conductor and insulator.
- where the semi conductor lies between the other two. ie. controlled conduction is possible in semi conductor.
- thats why it is preferred in electronic devices.
- A PN junction is formed in all the three types of materials. but in semi consuctor the junction is very thin and easy to break it with the very low voltage.
indranillahiri
- Nov 2nd, 2011
Semiconductor devices are made with semiconductor materials like Silicon, Germanium ,having the electrical properties of both Conductors and insulators. For Example pn junction diode, BJT, MOSFET, SCR etc. They are mainly used in Switching and Amplification purposes.
AKSA
- Oct 10th, 2011
The semiconductor devices are the devices which stand in between the insulators & conductors.
It have medium amount of electrons. -
Differences between microprocessor and micro controller
rajashree
- Aug 24th, 2011
Microprocessor is an ic chip in a micro controller which performs various logical operations. micro controller is a device which contains microprocessor,input output ports,counters,timers etc...
darochg
- Jul 19th, 2010
Microcontollers are application specific, while microprocessor is a multipurpose device which needs memory and i/o devices to be interfaced with.up+i/o devices+ memory= uc
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Pn junction
If there is the level of impurity in p-type & n-type semiconductor of pn junction diode is different then what effect on depletion?
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H-parameter
What is hybrid parameter
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Convert Binary to BCD
How can we convert a binary number into BCD number directly and vice-versa, without converting it into any other number system?
uzipereg
- Jul 30th, 2011
It depends on the range. An algorithm can be used.
For a number in the range of 0 to 19 (decimal), the following algorithm can be used:
if a -
2 Input XOR Gate
How many 2:1 multiplexers do we need to make a 2 input XOR gate?
uzipereg
- Jul 30th, 2011
A xor B= A'B + AB' hence, if A=0, then the output is B if A=1, then the output is B' so we need only ONE mux (2:1), which is controlled by A, and its inputs are B --> mux_in_0 ...
Suvarna Gadde
- Dec 8th, 2010
To design the XOR using 2:1 mux, we need to tie the “Zeroth” input of mux to one of the input of XOR and another input of MUX to the inverted of first input. The another input of XOR gate ...
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Superhet receiver
Explain the importance and effect of IF IN radio receiver.
uzipereg
- Jul 30th, 2011
The superhet rodyne receiver is quite important in a radio receiver. It enable the receiver to use a single frequency as the center frequency of the band-pass filter. this frequency is the Intermedia...
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Fermi level for an Intrinsic Semiconductor
Fermi level for an intrinsic semiconductor lies midway between the valence and conduction bands, bcoz---a) the temperature does not influence its position.b) the effective mass of hole is greater than that of electronc) the effective mass of electron is taken equal to that of holed) none of the abovewhich is the right option?
Didan Francis
- Jul 18th, 2011
C)..as a intrinsic semiconductor will have 4 electrons..so its neither a acceptor or a donar..
jhabua
- Jun 27th, 2011
Strictly speaking the Fermi level of intrinsic semiconductor does not lie in the middle of energy gap because density of available states are not equal in valence and conduction bands
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Power Electronics
What is power electronics?
Srinivasan
- Jul 14th, 2011
Power electronic is one of the branch in electronic,
mostly using industrial application for drivers circuit, switching circuit,etcsneha_r
- Jun 2nd, 2009
Power electronics is the general branch of electronic design that involves handling, converting or conditioning relatively high power.
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GSM Interfaces
What are the interfaces used in GSM?
vin18
- May 23rd, 2011
The different interfaces used in GSM listed as follows: 1. GSM radio air interface: This is the interface between MS and BTSs. 2. Abis interface: The one connecting the BTS to a BSC is known as Abis...
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Effect of Increased Resistance
What is the effect of increase resistance on reluctance?
ashim_stifler
- Mar 23rd, 2011
The rate of flow of charge(called as current) is inversely proportional to the resistance of the conductor through which the current is flowing in a particular direction. i.e. when we increase the res...
jaiganesh032
- Dec 18th, 2010
The Amount Current Flow in a particular direction in a circuit has been controlled or we can say reduced by using the resistance value, depends upon the value the flow of current is regulated in a circuit.
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Convert JK Flip Flop into SR Flip Flop
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Excitation Table
What is the use of excitation table in digital electronics?
vinit.slim.shady
- Jan 10th, 2011
Excitation table is required when we want to design a state machine from the truth table of any of the flip flops used.
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Device Frequence
How will you determine what frequency the device has without using oscilloscope?
Er.Anju
- Dec 21st, 2010
The frequency of a device can also be calculated by the method below:- Speed of light (c) =299,792,458 m/s. Planck constant (h) =4.13566733E'15 eV s (1E-15 denotes "10 in power -15") Frequency(Hz) = ...
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What is the difference between latches and flip flop
ajeebj
- May 22nd, 2008
Latches are level sensitive devices where as Flipflops are edge sensitive device
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Satellite Communication Frequency Range
What is the frequency range of satellite communication?
shikha khaneja
- Oct 29th, 2010
Satellite mainly works in c band(4-8GHz) or KU band(12-18GHz) and these are mainly for the downlink.
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BJT Device
Why BJT is called current control device?
nikram.aptil76
- Oct 23rd, 2010
As the output of the BJT is controlled by the base current of the transister
engr.hayee
- Sep 1st, 2010
Because the small current (Base current) is controlling large current (collector current).
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