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What is the difference in energy levels tha exists between the valence band and the conduction band is called?
The difference in energy levels between the valence band and the conduction band is called the "band gap" or "energy gap." This band gap determines the electrical conductivity of a material; in insulators, it is large, while in conductors, it is small or nonexistent. In semiconductors, the band gap is moderate, allowing for controlled conductivity under certain conditions, such as temperature changes or doping.
What percentage of central frequency as bandpass for a narrow band amplifier?
central freqency of narrow band pass filter is the measure of difference between upper and lower cut off freqency
What does conduction band represent in forbidden energy gap of pn- junction diode?
In a pn-junction diode, the conduction band represents the range of energy levels that electrons can occupy and move freely, contributing to electrical conductivity. The forbidden energy gap, or band gap, is the energy difference between the conduction band and the valence band, where no electron states exist. In a pn-junction, electrons can be promoted from the valence band to the conduction band, allowing current to flow when the diode is forward-biased. The size of the forbidden energy gap influences the diode's electrical properties and its response to temperature and light.
What is the difference between energy gap and turn on voltage of silicon?
The energy gap, or bandgap, of silicon refers to the energy difference between the valence band and the conduction band, which is approximately 1.1 eV at room temperature. In contrast, the turn-on voltage is the minimum voltage required to forward-bias a silicon diode, allowing significant current to flow; this typically ranges from 0.6 to 0.7 volts. While the energy gap is a fundamental property of the material related to its electronic structure, the turn-on voltage is influenced by factors such as temperature and doping levels.
What is bifference between optical bandgap and semiconduct0r bandgap?
we all know that electrons,photons, phonons can excite an electron from valence band to conduction band...i think the main difference between electronic bandgap and optical bandgap is that in electonic its the energy required for an electron to move from the valence band to the conduction band.but in optical bandgap photons(packet of energy in the form of light waves) are assisting the electrons to move from valence band to conduction band.The difference between optical and electronic bandgap is more complexe actually. The optical bandgap is the one that can be measured using optical techniques (based on transmission and reflection, i.e. Tauc plot). However, this measurement does not take into account all traps you might have within the bandgap that can modify the energy required to move one charge carrier from the conduction band ans the conduction band. The electronic band gap (which is the one of interest in fine, in an integrated device) is measured under operation. Thus, for many devices (lasers, solar cells...etc.) the electronic bandgap (energy required to get the device working) can defer from the optical bandgap.
What are the disadvantages of outband signalling over inband signalling?
disadvantage of in-band signalling
What is signal?
In telephony, signaling is the exchange of information between involved points in the network that sets up, controls, and terminates each telephone call. In in-band signaling , the signaling is on the same channel as the telephone call. In out-of-band signaling , signaling is on separate channels dedicated for the purpose.
What is the difference between chain printer and band printer?
The difference between a chain printer and a band printer is a chain printer has a chain that the characters are on and a band printer has a band for the characters.
What is the difference between gastric band and lap band surgery?
The difference between gastric band surgery and lap band surgery is the type of procedure which is undertaken and the complications which may arise from the surgery.
What is the difference between a band with a guitar and a band without a guitar?
The guitar.
What is the difference between frequency diversity and space diversity?
What is the Diffeence between the In band and Out of Band Frequency Diversity
Which signaling method carries tones in the same voice frequency and circuit of a telephone call?
in-band signaling
What type of signaling transmits call setup on the same channel as a voice signal?
In-Band Signaling (IBS)
What is the difference between rock band and rock band 2?
I think the only difference is the music list....and the big number 2 on the box :)
What is the difference between an bandage and a band aid?
A band-aid is the brand name, while a bandage is what its really called.
What is the difference between ABBA and the beetles?
The beetles were a boy band
What is the difference between rock band and guitarhero world tour?
I don't see a big difference.
