Question2(A) Find (current density)

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Question2(A) Find (current density)
Qifill the blank
1-The current in semi- conductor produced by.
2-Processof adding an impurity to an intrinsic semi- conductor is called..
3-pentavalent impurity is added to silicon to create..
4-The depletion region consist of.
5-purpose of impurity pentavalent is increase..
6-the condition to diode operated and passes current is...
.and.
....and .
Q2A/ A metal object with length 10cm and area 5mm and resistance of it .342. A potential voltage of
5volt applied on its sides if n-8.5x102°elec./cm'determine
1-conductivity
2-mobility
3-Current density
Q2B/ calculate value of diode current if temperature increases from room temperature to 75°,
voltage applied of it 0.44volt at room temperature and reverse current is 20nA
Q3A sample of silicon 2volt is impressed of it has 0.25mm long and area (0.25x.3mm ) the current across bar is
6mA and mobility of electron equal 1000m/v.sec .Find 1-drift velocity 2-concentration of electron.
17
Transcribed Image Text:Qifill the blank 1-The current in semi- conductor produced by. 2-Processof adding an impurity to an intrinsic semi- conductor is called.. 3-pentavalent impurity is added to silicon to create.. 4-The depletion region consist of. 5-purpose of impurity pentavalent is increase.. 6-the condition to diode operated and passes current is... .and. ....and . Q2A/ A metal object with length 10cm and area 5mm and resistance of it .342. A potential voltage of 5volt applied on its sides if n-8.5x102°elec./cm'determine 1-conductivity 2-mobility 3-Current density Q2B/ calculate value of diode current if temperature increases from room temperature to 75°, voltage applied of it 0.44volt at room temperature and reverse current is 20nA Q3A sample of silicon 2volt is impressed of it has 0.25mm long and area (0.25x.3mm ) the current across bar is 6mA and mobility of electron equal 1000m/v.sec .Find 1-drift velocity 2-concentration of electron. 17
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