College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question 2 (A)
: What is Fermi Deric probability of level above of Fermi level by 0.25 ev if temperature is 289°

Transcribed Image Text:Q1 Answer true or false
1-If the Electric field increase the Mobility of electrons is decrease in semi-
conductor
2-In N-type the Fermi level rises to conduction band
3-When the Vp is 1V and Is equal 5µA at temperature 25° the I, equal 2.3333nA
4- In complete model the reverse resistance provide pass to Ip
5-In characteristic curve of diode the I, decreases with increacesTemperture.
QIB/ Complete the following statements.
1- In complete model the reverse resistance provide pass to
2-In characteristic curve of diode the Ip.... with increases Temperture.
3-Reverse current I, in diode cct is .. at 10° rise in temperature
4-When the forward bias is 0.2V and I, is 1µA at temperature 27º the Ip
equal...
5-In Metal (Conductor) there is no....
6-In N-type the minority carrier is determined by....
..........
Q2A: What is Fermi Deric probability of level above of Fermi level by 0.25 ev
if temperature is 289°
B: what is the difference between forward and reverse biasing of diode
Q2B: In Bohr atom an electron in G.S absorbed Photon and transfer to forth
orbital Find the energy of photon to transfer from one state to forth state and
wavelength.
Q3A: P-types silicon sample is 0.2cm long and has a rectangular cross section
0.03cm .The accepter concentration is 5x108 holes/cm'. The mobility is
100. A current of 10µA exists in the bar. Determine the electron and hole
concentrations, the conductivity, current density,velocity of electrons, the
voltage across the bar and reristance.n-10".
B:
for the circuit series silicon diode.Vp=0.4v Find the Idiodes V aiodes Vtoad in
foreword and reverse bias. Consider the diode is ideal
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