11. Which of the following is not a unit of flux? A. Maxwell B. Telsa C. Weber D. All of the above 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
12. The magnetism left in the iron after exciting field has been removed is known as A. permeance B. residual magnetism C. susceptance D. reluctance 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
13. The materials having low retentivity are suitable for making A. weak magnets B. temporary magnets C. permanent magnets D. none of the above 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
14. The retentivity (a property) of material is useful for the construction of A. permanent magnets B. transformers C. non-magnetic substances D. electromagnets 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
15. If the steel disk in a crankshaft position sensor has stopped with the tab in the magnet's air gap, the induced voltage A. Increases B. Decreases C. Is zero D. Will remain constant 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
16. The unit of flux is the same as that of A. reluctance B. resistance C. permeance D. pole strength 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
17. A keeper is used to A. change the direction of magnetic lines B. amplify flux C. restore lost flux D. provide a closed path for flux 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
18. A permanent magnet A. attracts some substances and repels others B. attracts all paramagnetic substances and repels others C. attracts only ferromagnetic substances D. attracts ferromagnetic substances and repels all others 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. Two infinitely long parallel conductors in vacuum any separated 1 metre between centers >then a current of 1 ampere flows the. uk each conductor, produce on each other a force of A. 2 x 1(T2 N/m) B. 2 x KT3 N/m C. 2 x 10"5 N/m D. 2x 1(T7 N/m) 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. A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will A. Increase B. Decrease C. Remain constant D. Be excessive 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