Electrostatics MCQs

1.Identify the statement that is incorrect regarding electric charges:

Charges with the same sign push away from each other.Opposite charges pull toward one another.Repulsion is a definitive indicator of electric charge presence.A neutral object is repelled by both positive and negative charges.Electric charges can either attract or repel depending on their nature.

2.Which of the following statements about electric lines of force is accurate?

Electric lines of force are purely conceptual and lack physical reality.They widen sideways and shorten along their length.They never intersect and tend to cluster within dielectric materials.All the statements mentioned above are correct.

3.Which type of capacitor is most likely to overheat and explode if connected incorrectly in a circuit?

Capacitor made with paper dielectricCapacitor using ceramic materialElectrolytic capacitorAny capacitor type

4.Which type of capacitor is identified by having polarity markings?

5.What is the amount of power lost in an ideal capacitor?

NoneDepends on the voltage appliedDepends on the capacitance valueDepends on both voltage and capacitance

6.What happens to the voltage across the plates of a parallel plate capacitor when a dielectric material is inserted between them?

7.What components make up a capacitor?

Two insulating materials separated by a conductive layerTwo conductive plates separated by an insulating materialOnly two insulating layersOnly two conductive plates

8.In what form is a paper capacitor commonly manufactured?

9.What is the value of the permittivity of free space (vacuum permittivity)?

10.Identify the statement below that is false:

Reducing the thickness of the dielectric increases capacitance but decreases the voltage breakdown limit of a capacitor.A mica capacitor with six dots colored white, green, black, red, and yellow represents a capacitance of 500 pF.When capacitors are connected in series, the total capacitance decreases while the voltage rating of the combination increases.A capacitor stores electrical charge due to the presence of a dielectric material between two conductive plates.None of the above statements are incorrect.

11.Which type of capacitor is suitable for temperature compensation purposes?

Capacitor with air dielectricCeramic type capacitorCapacitor made of paperNo capacitor is appropriate

12.What is the dielectric constant assigned to a vacuum?

01410

13.When measuring a capacitor using an ohmmeter, if the meter indicates charging but the steady-state resistance is significantly lower than expected, what does this suggest about the capacitor?

14.What type of quantity is electric field intensity classified as?

15.What is the amount of energy, in joules, stored in the electric field of a capacitor with capacitance C when it is charged by a DC voltage source V?

Electrostatics MCQs

About this subject