Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Semiconductor Electronics question

2007 · Q152
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Physics
  4. /Semiconductor Electronics
  5. /2007 · Q152

Semiconductor Electronics question

2007 · Q152

NEETPhysicsSemiconductor ElectronicsMCQ+4 / −1
In the energy band diagram of a material shown below, the open circles and filled circles denote holes and electrons respectively. The material is

AIPMT 2007 Physics - Semiconductor Electronics Question 62 English
  1. A
    an insulator
  2. B
    a metal
  3. C
    an n-type semiconductor
  4. D
    a p-type semiconductor.
View written solutionFree

Correct answer: D

For a p-type semiconductor, the acceptor energy level, as shown in the diagram, is slightly above the top Ev of the valence band. With very small supply of energy an electron from the valence band can jump to the level EC and ionise acceptor negatively.

PreviousNext

More from Semiconductor Electronics

  • The following figure shows a logic gate circuit with two inputs A and B and the output C. The voltage waveforms of A, B and C are as shown below. The logic circuit gate is Includes diagram2006 · MCQ
  • Which one of the following represents forward bias diode ?2006 · MCQ
  • Choose the only false statement from the following.2005 · MCQ
  • Application of a forward bias to a p-n junction2005 · MCQ
  • Zener diode is used for2005 · MCQ
  • Carbon, silicon and germanium atoms have four valence electrons each. Their valence and conduction bands are separated by energy band gaps represented by (Eg)C, (Eg)si and (Eg)Ge respectively. Which one of the following relationships is…2005 · MCQ
  • Copper has face centered cubic (fcc) lattice with interatomic spacing equal to 2.54 A∘​. The value of lattice constant for this lattice is2005 · MCQ
  • In a p-n junction photo cell, the value of the photo-electromotive force profuced by monochromatic light is proportional to2005 · MCQ