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