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

Answer
Answer : (d)
Explanation
No answer description available for this question. Let us discuss.

2. Exposure of insulating material to moisture causes an increase in :

(a) Dielectric loss
(b) Dielectric constant
(c) Dielectric strength
(d) Insulation resistance

Answer
Answer : (a)
Explanation
No answer description available for this question. Let us discuss.

3. Dielectric materials are essentially :

(a) Insulating materials
(b) Ferro-electric materials
(c) Ferri-electric materials
(d) Superconducting materials

Answer
Answer : (a)
Explanation
No answer description available for this question. Let us discuss.

4. On placing a dielectric in an electric field, the field strength :

(a) Increases
(b) Decreases
(c) Remains constant
(d) Reduces to zero

Answer
Answer : (b)
Explanation
No answer description available for this question. Let us discuss.

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

Answer
Answer : (a)
Explanation
No answer description available for this question. Let us discuss.
≡ LEVEL – Exercise – 1
« LEVEL  – Mcq & Notes
«« LEVEL  – Mcq & Notes
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