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MCQs 1: The bar magnet has____________?

the dipole moment monopole moment A. and B. both none of the above
Answer Explanation

MCQs 2: How does the magnetic compass needle behave in a magnetic field ?

It assures a position right angle to magnetic field It starts rotating It assures a position which follows a line of magnetic flux None of the above
Answer Explanation

MCQs 3: Which of the following type of materials are not very important for engineering applications ?

Ferromagnetic Paramagnetic Diamagnetic None of the above
Answer Explanation

MCQs 4: The stray line of magnetic flux is defined as_____________?

a line vertical to the flux lines the mean length of a ring shaped coil a line of magnetic flux in a non-uniform field a line of magnetic flux which does not follow the designed path
Answer Explanation

MCQs 5: Which of the following materials are diamagnetic ?

Silver Copper Silver and copper Iron
Answer Explanation

MCQs 6: For which of the following materials the saturation value is the highest ?

Ferromagnetic materials Paramagnetic materials Diamagnetic materials Ferrites
Answer Explanation

MCQs 7: The attraction capacity of electromagnet will increase if the_______________?

core length increases i core area increases flux density decreases flux density increases
Answer Explanation

MCQs 8: The susceptibility of paramagnetic materials generally lies between____________?

KT3 and 1CT6 1CT3 and 1CT7 KT4 and KT8 10″2 and KT5
Answer Explanation

MCQs 9: Temporary magnets are used in______________?

loud-speakers generators motors all of the above
Answer Explanation

MCQs 10: For which of the following materials the net magnetic moment should be zero ?

Diamagnetic materials Ferrimagnetic materials Antiferromagnetic materials Antiferrimagnetic materials
Answer Explanation

MCQs 11: Core of an electromagnet should have____________?

low coercivity high susceptibility both of the above none of the above
Answer Explanation

MCQs 12: Main causes of noisy solenoid are______________?

strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts both of above none of the above
Answer Explanation

MCQs 13: Magnetism of a magnet can be destroyed by_____________?

heating hammering by inductive action of another magnet by all above methods
Answer Explanation

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