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