11. The conductors have transport phenomena of electrons due to A. Electric field B. Magnetic field C. Electromagnetic field 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
12. Is a negatively charged particle present in an atom. A. Proton B. Neutron C. Electron 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
13. The resistivity of a metal is a function of temperature because A. The amplitude of vibration of the atoms varies with temperature B. The electron density varies with temperature C. The electron gas density varies with temperature 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
14. _______ is a hard solder. A. Tin-lead B. Tin-silver-lead C. Copper-zinc 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
15. Selenium is _____ semiconductor. A. Extrnisic B. Intmisic C. N-type D. P-type Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
16. The structure sensitive property of a super conductor is A. Critical magnetic field B. Transition temperature C. Critical current density 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
17. Spark plug makes use of which of the following materials for insulation ? A. Porcelain B. Slate C. Asbestos D. Glass 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
18. An H.R.C. fuse is A. A ceramic body having metal and caps B. A wire of platinum C. A heavy cross-section of copper or aluminium D. A ceramic tube having carbon rod inside it 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
19. Which of the following materials is used for making coils of standard resistances ? A. Copper B. Nichrome C. Platinum D. Manganin 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
20. The minority carrier concentration is largely a function of A. Forward biasing voltage B. Reverse biasing voltage C. Temperature D. The amount of doping 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