Unit 15: Electrostatics — Multiple Choice Questions

10th Class Physics · Unit 15: Electrostatics

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1.Electrical breakdown is:

2.Which of the following is a visible example of electrical breakdown?

3.What happens when two unlike charges are brought close to each other?

4.According to Coulomb's law, what happens to the attraction of two oppositely charged objects as their distance of separation increases?

5.The device which works on the principle of electrostatics:

1.What is the SI unit of electric charge?

2.When a plastic comb is rubbed through dry hair, what type of charge does it typically acquire?

3.The fundamental principle illustrates when two similarly charged glass rods repel each other is:

4.Which of the following is not a method of transferring electric charge between objects?

5.The total amount of charge in an isolated system is always:

6.When a charged rod is brought near a neutral conductor without touching, the conductor gets charged. This is due to:

7.In the process of charging by induction and then Earthing, the conductor finally acquires a charge that is:

8.What is the purpose of connecting a conductor to the earth during charging by induction?

9.A gold leaf electroscope can be used to detect charge because its leaves diverge when:

10.If the leaves of an electroscope collapse when a charged object is brought near (without touch), the object is likely a:

11.An electric field is defined as a region where a charge experiences a:

12.The direction of the electric field at a point is the direction of the force on a:

13.Inside a charged conducting sphere, the electric field is:

14.The electric field lines between two oppositely charged parallel plates are:

15.The SI unit of electric field intensity is:

16.Which of the following is an electrical conductor?

17.In the free electron model, the electrons responsible for conduction are called:

18.In an insulator, electrons are:

19.A simple circuit with a battery, bulb, and a gap is used to test materials. If the bulb lights up, the material inserted is a:

20.Which device uses a positively charged drum and negatively charged toner to create copies?

21.An electrostatic precipitator removes particulate matter from industrial gases by:

22.The visible glow sometimes seen around high-voltage power lines due to ionization of air is called:

23.A lightning rod protects a building by providing:

24.Which of the following is a danger of static electricity accumulation?

25.According to Coulomb's law, the force between two point charges is directly proportional to the:

26.The constant k in Coulomb's law depends on:

27.If the distance between two charges is doubled, the electrostatic force becomes: