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Question

Match the following lists :
List - IList - II
a. Si-band gapi. 3.3 eV
b. Ge-band gapii. 1.12 eV
c. Ga As band gapiii. 0.7 eV
d. Si C band gapiv. 1.43 eV

Codes :

The correct answer is
a - iv, b - ii, c - iii, d - i

Matching Semiconductor Band Gaps

The task is to match semiconductors listed in List I with their corresponding band gap energies from List II.

Semiconductor Band Gap Matching

Based on Option D, the matching is as follows:

List I (Semiconductor) List II (Band Gap)
a. Si iv. $1.43 \, \text{eV}$
b. Ge ii. $1.12 \, \text{eV}$
c. GaAs iii. $0.7 \, \text{eV}$
d. SiC i. $3.3 \, \text{eV}$

This specific pairing represents the solution provided by Option D.

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Important Questions from Semiconductor Materials

  1. Match the LIST-I with LIST-II
    LIST-ILIST-II
    A. BJTI. Five layers and four junction device
    B. MOSFETII. Power switching device with fast acting features and high power capability with voltage control features
    C. IGBTIII. Voltage controlled device
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    Choose the correct answer from the options given below:
  2. A silicon solar cell has a short-circuit current of 100mA and an open circuit voltage of 0.8V under full solar illumination. The fill factor is given as 0.7, what is the maximum power delivered to a load by the cell?
  3. The common drain circuit has a FET with $Y_{fs}$=3000 µS, $R_{gs}$=100 MΩ and $r_d$=50 KΩ. Determine the device input impedance.

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  5. Given below are the two statements
    I. Graphene in its purest and defect free form has electrical conductivity lesser than that of Gold and Copper
    II. It is possible to develop graphene in the form of nano-ribbons and quantum dots
    Choose the correct option from the list given below.
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