NCERT Class XII Chapter
Semiconductor Electronics
Questions With Solutions
© examsnet.com
Question : 3
Total: 19
Carbon, silicon and germanium have four valence electrons each. These are characterised by valence and conduction bands separated by energy band gap respectively equal to ( E g ) C , ( E g ) S i and ( E g ) G e . Which of the following statements is true?
Solution:
The energy band gap is largest for carbon, less for silicon and least for germanium.
So, the correct statement is (c).
( E g ) C >( E g ) S i > ( E g ) G e
So, the correct statement is (c).
© examsnet.com
Go to Question: