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Test: Semiconductor Physics


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10 Questions MCQ Test Analog Electronics | Test: Semiconductor Physics

Test: Semiconductor Physics for Electrical Engineering (EE) 2022 is part of Analog Electronics preparation. The Test: Semiconductor Physics questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Semiconductor Physics MCQs are made for Electrical Engineering (EE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Semiconductor Physics below.
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Test: Semiconductor Physics - Question 1

In the problems assume the parameter given in following table. Use the temperature T= 300 K unless otherwise stated.


In germanium semiconductor material at T 400 K the intrinsic concentration is (x 10^14 per cc)

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Test: Semiconductor Physics - Question 2

The intrinsic carrier concentration in silicon is to be no greater than ni = 1 x 10^12 cc. The maximum temperature allowed for the silicon is ( Eg = 1.12 eV)

Test: Semiconductor Physics - Question 3

Two semiconductor material have exactly the same properties except that material A has a bandgap of 1.0eV and material B has a bandgap energy of 1.2 eV. The ratio of intrinsic concentration of material A to that ofmaterial B is

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Test: Semiconductor Physics - Question 4

 In silicon at T = 300 K the thermal-equilibrium concentration of electron is n0 = 5 x 10^4 cc. The hole concentration is

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ni x ni = no x po.

Test: Semiconductor Physics - Question 5

In silicon at T = 300 K if the Fermi energy is 0.22 eV above the valence band energy, the value of p0 is​

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Test: Semiconductor Physics - Question 6

The thermal-equilibrium concentration of hole p0 in silicon at T = 300 K is 1015 cm3. The value of n0 is

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Test: Semiconductor Physics - Question 7

In germanium semiconductor at T 300 K, the acceptor concentrations is Na 1013 cm3 and donor concentration is Nd 0. The thermal equilibrium concentration p0 is

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Test: Semiconductor Physics - Question 8

A silicon sample doped n type at 10^18 cm3 have a resistance of 10 ohm. The sample has an area of 10^(-6) cm2 and a length of 10 µm . The doping efficiency of the sample is (µn = 800 cm2/V-s )

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Test: Semiconductor Physics - Question 9

Six volts is applied across a 2 cm long semiconductor bar. The average drift velocity is 104 cms. The electron mobility is

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Test: Semiconductor Physics - Question 10

A particular intrinsic semiconductor has a resistivity of 50 (ohm-cm) at T = 300 K and 5 (ohm-cm) at T = 330 K. If change in mobility with temperature is neglected, the bandgap energy of the semiconductor is

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