Q. For making a capacitor, it is better to select a dielectric having low permittivity high permittivity permittivity same as that of air permittivity slightly more than that of air Answer: high permittivity
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Daily Quiz on Current Affairs 4 & 5 October 2022 is very important for Competitive Exams like SSC, Railway, RRB, Banking, IBPS, PSC, UPSC, etc. Our Gkseries team have composed these Current Affairs Quizzes from Newspapers like The Hindu and other competitive magazines. Current Affairs for Competitive Exam – 04 & 05 October 2022
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Q. A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is 0.024 F 0.12 F 0.6 F 0.8 F Answer: 0.024 F
A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is Read More »
Q. If the sheet of a bakelite is inserted between the plates of an air capacitor, the capacitance will decrease increase remains unchanged become zero Answer: increase
Q. The ability of charged bodies to exert force on 6ne another is attributed to the existence of electrons protons neutrons electric field Answer: electric field
Q. An electrolytic capacitor can be used for D.C. only AC. only both D.C. as well as A.C. Answer: D.C. only
Q. In electrostatic air cleaner, air mixed with dust and pollen enters device across positively charged mesh negatively charged mesh neutral mesh dual charged mesh Answer: positively charged mesh
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Q. If a charged rod is brought closer to a gas filled balloon then Radius decreases Balloon bursts Radius increase Balloon squeezes Answer: Radius increase
If a charged rod is brought closer to a gas filled balloon then Read More »
Q. Coulomb’s force between 2 point charges 10µC and 5µC placed at a distance of 150cm is 0.2 N 0.5 N 2 N 10 N Answer: 0.2 N
Coulomb’s force between 2 point charges 10µC and 5µC placed at a distance of 150cm is Read More »
Q. Ability of capacitor to store charge depends upon area of plates distance between plates type of dielectric used all of above Answer: all of above
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