Dielectric Materials » Exercise – 1
2. Exposure of insulating material to moisture causes an increase in :
(a) Dielectric loss
(b) Dielectric constant
(c) Dielectric strength
(d) Insulation resistanceSubject Name : Electronics Engineering Exam Name : IIT GATE, UPSC ESE, RRB, SSC, DMRC, NMRC, BSNL, DRDO, ISRO, BARC, NIELIT Posts Name : Assistant Engineer, Management Trainee, Junior Engineer, Technical Assistant Electronics & Communication Engineering Books
GATE 2023 Total Info ENGG DIPLOMA UGC NET Total Info IES 2023 Total Info PSUs 2022 Total Info CSIR UGC NET Total Info JAM 2023 Total Info M TECH 2023 Total Info RAILWAY 2022 Total Info
Related Posts
Dielectric Materials » Exercise - 111. Mica is a : (a) Dielectric material (b) Insulating material (c) Magnetic material (d) Both insulating and dielectric material- Dielectric Materials » Exercise - 1 1. On introducing a dielectric medium in between the plates of a capacitor, one of the following quantities will not change : (a) Charge storing capacity (b) Potential difference (c) Electric field strength (d) Electric flux density 2. Exposure of insulating material to moisture causes an increase in : (a) Dielectric loss (b) Dielectric constant (c) Dielectric strength (d) Insulation resistance 3. Dielectric materials are essentially : (a) Insulating materials (b) Ferro-electric materials (c) Ferri-electric materials (d) Superconducting materials 4. On placing a dielectric in an electric field, the field strength : (a) Increases (b) Decreases (c) Remains constant (d) Reduces to zero 5. Dielectric constant relates to : (a) Comparative charge stored for a given material versus air (b) The fact that the dielectric doesn’t have charge characteristics (c) The insulating properties of the non-conducting mediums (d) None of the above 6. Since dielectric materials are nonconductive : (a) Capacitors leakage resistance is finite (b) Capacitors leakage resistance is infinite (c) A capacitor cannot pass current through the circuit (d) None of the above 7. Materials which can store electrical energy are called : (a) magnetic materials (b) semi conductors (c) dielectric materials (d) super conductors 8. The dielectric constant of air…
- Dielectric Materials » Exercise - 110. Dielectric constant of vacuum is : (a) infinity (b) 100 (c) one (d) zero
- Dielectric Materials » Exercise - 19. Dielectric materials are : (a) Insulating materials (b) Semiconducting materials (c) Magnetic materials (d) Ferroelectric materials
- Dielectric Materials » Exercise - 18. The dielectric constant of air is practically taken as : (a) more than unity (b) unity (c) less than unity (d) zero