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Electrostatics Multiple Choice Questions Set 1

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1. To relieve the discomfort of allergy sufferers in homes, we use




2. Coulomb's law is only true for point charges whose sizes are




3. As per Coulomb's law, the force of attraction or repulsion between two point charges is directly proportional to the




4. The ability of a capacitor to store charge depends upon




5. In the combination of capacitors in series, the capacitors are connected




6. The coulomb's force between the 2 point charges 10µC and 5µC placed at a distance of 150cm is




7. If 5 J of work is required to shift 10 C charge from one place to another then the potential difference is




8. The value of k in coulomb's law depends upon




9. A device which stores charge is called




10. The resonant circuits that tune radios to particular frequencies are called




11. The property of material due to which it attracts or repels other objects is




12. In electrostatic air cleaner, air mixed with dust and pollen enters device across




13. Plastic rod rubbed with fur and glass rod rubbed with silk




14. Electric intensity being a force is a




15. If the body is positively or negatively charged the leaves of electroscope will




16. The amount of work done in bringing unit positive charge from infinity to a point in electric field is called




17. As per Coulomb's law, the force of attraction or repulsion between two point charges is inversely proportional to the




18. Capacitor plates are separated by an insulator known as




19. The capacitors which use chemical reactions to store charge are called




20. A sensitive instrument for detecting charges is called




21. 3 capacitors with capacitances 5µ F, 6µ F and 7µ F are arranged in series combination with a battery of 5V, as 1µ F = 10-6F, the quantity of charge on each plate of the capacitor is




22. Electroscope can be charged by




23. The capacitor which has a dielectric between its plates and is made of a flexible material that can be rolled into the shape of a cylinder is called




24. To paint new cars automobile workers use




25. 3 capacitors with capacitances 5µF, 6µF and 7µF are arranged in parallel combination with a battery of 5V, as 1µF = 10-6F, the voltage across each capacitor is




26. 3 capacitors with capacitances 5µF, 6µF and 7µF are arranged in parallel combination with a battery of 5V, as 1µF = 10-6F, the voltage across each capacitor is




27. The charge on capacitor plates is directly proportional to




28. In equation Q=CV, C is the constant of proportionality called the capacitor's




29. Coulomb is equal to the charge of




30. 3 capacitors with capacitances 5µ F, 6µ F and 7µ F are arranged in series combination with a battery of 5V, as 1µ F = 10-6F, the total capacitance should be




31. 3 capacitors with capacitances 5µ F, 6µ F and 7µ F are arranged in series combination with a battery of 5V, as 1µ F = 10-6F, the total capacitance should be




32. SI unit of electric potential is




33. Electric field intensity is a




34. If 2 bodies are oppositely charged with 400µC and 200µC, the distance between them in the air is 0.5 m. The force between the bodies should be




35. A body in the gravitational field always tends to move from a point of potential energy in straight line




36. If 5 J of work is needed to shift 10C of charge from one place to another. The potential difference between the places should be




37. The direction of electric field intensity in an electric field can be represented by drawing




38. If the capacitance of a parallel plate capacitor is 100µ F and the potential difference is 70µ F, the quantity of charge stored on each plate would be




39. The force acting on a unit positive charge placed at that point is termed as




40. The fundamental law of electric force between two stationary charged particles is established by