A. 2
B. 3
C. 4
D. 5
Related Mcqs:
- To obtain an n-type semiconductor germanium crystal it must be doped with foreign atoms whose valency is_____________?
A. 2
B. 3
C. 4
D. 5 - Semi-conductors with donor atoms and free electrons belong to the type________________?
A. n
B. p
C. mix
D. any of above - Semi-conductor germanium and silicon are_________________?
A. pentavalent
B. trivalent
C. divalent
D. tetravalent - Forward current through a semi conductor diode circuit is due to____________?
A. minority carriers
B. majority carriers
C. holes
D. electron - The specially designed semi-conductor diodes used as fast counters in electronic circuits are______________?
A. The light emitting diodes
B. Photo diodes
C. Photo voltaic cell
D. Solar cells. - The specially designed semi-conductor diodes used as fast counters in electronic circuits are_______________?
A. The light emitting diodes
B. Photo diodes
C. Photo voltaic cell
D. Solar cells. - If the density of atoms remain same along any direction in a crystal is called__________________?
A. Symmetry
B. Homogeneity
C. Isotropy
D. Cleavage - A current carrying conductor is placed in a uniform magnetic field parallel to it. The magnetic force experienced by the conductor is _____________________?
A. F=1/B
B. F=1/Bsinθ
C. F/0
D. F=1/Bcosθ - With increase in temperature the electrical conductivity of intrinsic semi conductor___________________?
A. Decreases
B. Increases
C. Remains same
D. First increases then decreases - Many of the semi conductors are crystals of the type__________________?
A. Face centred cubic
B. Body centred cubic
C. Simple cubic
D. All of the above
