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MCQs 1: The use of permanent magnets is. not made in_____________?

magnetoes energy meters transformers loud-speakers
Answer Explanation

MCQs 2: 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_________________?

2 x 1(T2 N/m) 2 x KT3 N/m 2 x 10″5 N/m 2x 1(T7 N/m)
Answer Explanation

MCQs 3: The main constituent of permalloy is_____________?

cobalt chromium nickel tungsten
Answer Explanation

MCQs 4: Paramagnetic materials have relative permeability________________?

slightly less than unity equal to unity slightly more than unity equal to that ferromagnetic mate rials
Answer Explanation

MCQs 5: Gilbert is a unit of_______________?

electromotive force magnetomotive force conductance permittivity
Answer Explanation

MCQs 6: Substances which have permeability less than the permeability of free space are known as_____________?

ferromagnetic paramagnetic diamagnetic bipolar
Answer Explanation

MCQs 7: In the left hand rule, forefinger always represents______________?

voltage current magnetic field direction of force on the conductor
Answer Explanation

MCQs 8: Ferrites are a sub-group of_______________?

non-magnetic materials ferro-magnetic materials paramagnetic materials ferri-magnetic materials
Answer Explanation

MCQs 9: Reciprocal of permeability is____________?

reluctivity susceptibility permittivity conductance
Answer Explanation

MCQs 10: Which of the following is the unit of magnetic flux density ?

weber lumens tesla none of the above
Answer Explanation

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