SEMI CONDUCTOR MATERIALS MCQs 10 min Score: 0 Attempted: 0/10 Subscribe 1. . Shape of a crystal is simple cubic when one atom lies at its: (A) Eight corners (B) Four corners (C) Six corners (D) Five cornersShow All Answers 2. . Band theory of solids has explained the behaviour of: (A) All of these (B) Conductors (C) Semiconductors (D) InsulatorsShow All Answers 3. . Which of the following has the greatest energy gap: (A) Conductor (B) Insulator (C) Semiconductor (D) All of theseShow All Answers 4. . The substances having intermediate values of resistivity are called: (A) Semiconductor (B) Insulator (C) Conductor (D) All of theseShow All Answers 5. . An N-type semiconductor is obtained by adding impurity: (A) Aluminium (B) Antimony (C) Boron (D) IndiumShow All Answers 6. . A P-type semiconductor is obtained by adding impurity in the form of: (A) Indium (B) Cobalt (C) Phosphorus (D) AntimonyShow All Answers 7. . A forward biased diode has resistance: (A) Zero (B) Infinite (C) High (D) LowShow All Answers 8. . Semiconductor diode conducts only when it is: (A) Reverse biased (B) Forward biased (C) Not biased (D) All of theseShow All Answers 9. . The reverse current through a semiconductor diode is due to: (A) Minority carriers (B) Majority carriers (C) Holes (D) ElectronsShow All Answers 10. . Photo voltaic cell is a device which converts: (A) Light into sound (B) Light into chemical energy (C) Chemical energy into light (D) Light into electrical energyShow All Answers