By Surendra | June 11, 2020 0 Comment 0% 5 Created by Surendra Magnetism and Electromagnetism Quiz in English Set 1 All Important Question Answers for Electrician Related Exams 1 / 20 Gilbert is a unit of permittivity electromotive force conductance magnetomotive force 2 / 20 A magnetic field exists around moving charges copper aluminium iron 3 / 20 Which of the following is a ferromagnetic material ? Tungsten Aluminium Copper Nickel 4 / 20 The unit of relative permeability is henry/sq. m henry/metre henry it is dimensionless 5 / 20 In the left hand rule forefinger always represents voltage magnetic field current direction of force on the conductor 6 / 20 Tesla is a unit of inductance flux flux density field strength 7 / 20 The materials having low retentivity are suitable for making permanent magnets weak magnets temporary magnets none of the above 8 / 20 Which of the following is a vector quantity ? Relative permeability Magnetic potential Flux density Magnetic field intensity 9 / 20 The use of permanent magnets is. not made in energy meters loud-speakers transformers magnetoes 10 / 20 Air gap has_______eluctance as compared to iron or steel path higher zero lower little 11 / 20 A permeable substance is one which is a bad conductor which is a strong magnet through which the magnetic lines of force can pass very easily which is a good conductor 12 / 20 Ferrites are a sub-group of non-magnetic materials paramagnetic materials ferro-magnetic materials ferri-magnetic materials 13 / 20 Which of the following is the unit of magnetic flux density ? weber lumens none of the above tesla 14 / 20 The left hand rule correlates to self induction mutual induction and direction of force on a conductor magnetic field electric field and direction of force on a conductor current magnetic field and direction of force on a conductor current induced e.m.f. and direction of force on a conductor 15 / 20 Paramagnetic materials have relative permeability equal to unity slightly less than unity slightly more than unity equal to that ferromagnetic mate rials 16 / 20 The main constituent of permalloy is tungsten chromium cobalt nickel 17 / 20 The direction of magnetic lines of force is from south pole to north pole from north pole to south pole from one end of the magnet to another none of the above 18 / 20 Magnetising steel is normals difficult because it corrodes easily it has high specific gravity it has low permeability it has high permeability 19 / 20 The ratio of intensity of magnetisation to the magnetisation force is known as relative permeability susceptibility flux density none of the above 20 / 20 Ferrites are materials. none of the above diamagnetic paramagnetic ferromagnetic कृपया सही सूचना भरें ताकि सर्टिफिकेट ईमेल पर भेजा जा सकें। NameEmailPhone NumberDistrictSchool/Coaching Name Your score is LinkedIn Facebook Twitter VKontakte 0% Restart quiz आपको यह क्विज अच्छी लगी तो 5 स्टार रेटिंग जरुर दें । Send feedback
