Electromagnetics Set 13

Electrical Engineering

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This set of Electromagnetics Multiple Choice Questions & Answers (MCQs) focuses on Electromagnetics Set 13

Q1 | The minimum value of potential gradient in a cable occurs in
Q2 | Acharge which when placed in vacuum from an equal and similar charge repels with aforce of 9 x 10 N, is known as
Q3 | Dielectric strength of a medium is usually expressed in
Q4 | A positive and a negative charge are initially 50 mm apart. When they are moved closetogether so that they are now only 10 mm apart, the force between them will be
Q5 | Which is the most superior dielectric out of the following ?
Q6 | When a dielectric is placed in an electric field the field strength
Q7 | To prevent the generation of static charges on rubber or flat leather
Q8 | Which of the following capacitor is preferred in case of single phase motor ?
Q9 | A capacitance is a circuit component that opposes the change in circuit
Q10 | A condenser suitable for D.C. only is
Q11 | In a capacitor, the electric charge is stored in
Q12 | Tesla is a unit of
Q13 | The materials having low retentivity are suitable for making
Q14 | A magnetic field exists around
Q15 | Ferrites are materials.
Q16 | Air gap has eluctance as compared to iron or steel path
Q17 | The direction of magnetic lines of force is
Q18 | Which of the following is a vector quantity ?
Q19 | The two conductors of a transmission line carry equal current I in opposite directions.The force on each conductor is
Q20 | A material which is slightly repelled by a magnetic field is known as
Q21 | When an iron piece is placed in a magnetic field
Q22 | Fleming's left hand rule is used to find
Q23 | The ratio of intensity of magnetisation to the magnetisation force is known as
Q24 | The left hand rule correlates to
Q25 | The unit of relative permeability is
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