Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2012PhysicsSemiconductorsActual

C and Si both have same lattice structure, having 4 bonding electrons in each. However, C is insulator whereas Si is intrinsic semiconductor. This is because

Options

  1. Ain case of C , the valence band is not completely filled at absolute zero temperature
  2. Bin case of C , the conduction band is partly filled even at absolute zero temperature
  3. Cthe four bonding electrons in the case of C lie in the second orbit, whereas in the case of Si they lie in the
  4. Dthe four bonding electrons in the case of C lie in the third orbit, whereas for Si they lie in the fourth orbi

Correct answer

C. the four bonding electrons in the case of C lie in the second orbit, whereas in the case of Si they lie in the

Step-by-step solution

The four bonding electrons in the case of C lie in the second orbit, whereas in case of Si they lies in the third orbit so loosely bounded valency electron in Si as compared to C .

Practice Semiconductors on Quantrex Academy →

More from Semiconductors

For two inputs A and B and output Y, the Boolean expression for NOR gate is 2026For an n-type semiconductor, the relation between the number density ' n_h ' and ' n_e ' is 2026A silicon crystal is doped with 5 10¹⁷ cm ⁻³ atoms of boron. The electron concentration (n_e) at room temperature is (n_i = 1.5 10¹⁰ cm ⁻³) 2026If the current gain in common-base configuration ( ) of a transistor increases from 0.95 to 0.96, the percentage change in current gain in common-emitter configuration ( ) is appro 2026Out of the following what is used to detect the intensity of light ? 2026The color of light emitted by an LED is determined primarily by which of the following factors? 2026Which of the following is true for a p-type semiconductor? 2026In case of semiconductors, the band gap between the valence band and conduction band is 2026 Full Semiconductors list All NEET PYQs