41. The most commonly used semiconductor material is A. Silicon B. Germanium C. Mixture of silicon and germanium D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
42. Permalloy is A. A variety of stainless steel B. A polymer C. A conon-ferrous alloy used in aircraft industry D. A nickel an iron alloy having high permeability Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
43. Which one of the following is not a characteristic of a ferroelectric material? A. High dielectric constant B. No hysteresis C. Ferroelectric characteristic only above the curie point D. Electric dipole moment Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
44. In which of these is reverse recovery time nearly zero? A. Zener diode B. Tunnel diode C. Schottky diode D. PIN diode Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
45. Hall effect is observed in a specimen when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is A. Normal to both current and magnetic field B. In the direction of current C. Antiparallel to magnetic field D. In arbitrary direction Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
46. Fermi level is the amount of energy in which A. A hole can have at room temperature B. An electron can have at room temperature C. Must be given to an electron move to conduction band D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
47. In monolithic ICs, all the components are fabricated by A. Diffusion process B. Oxidation C. Evaporation D. None Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
48. When diodes are connected in series to increase voltage rating the peak inverse voltage per junction A. should not exceed half the breakdown voltage B. should not exceed the breakdown voltage C. should not exceed one third the breakdown voltage D. may be equal to or less than breakdown voltage Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board