Current Electricity
Fast practice, instant feedback. Timer auto-submits when time’s up.
Avg score: 33% • Most missed: “Cell having an emf ε and internal resistance r isconnected across a variable ex…”
Current Electricity
Time left 00:00
25 Questions

1. Two identical batteries each of e.m.f 2V and internalresistance 1Ω are available to produce heat in anexternal resistance by passing a current through itThemaximum power that can be developed across R usingthese batteries is [1990]
2. The velocity of charge carriers of current (about 1amp) in a metal under normal conditions is of the orderof [1991]
3. Fuse wire is a wire of [2003]
4. The electric resistance of a certain wire of iron is R.If its length and radius are both doubled - then [2004]
5. Resistances n - each of r ohm - when connected inparallel give an equivalent resistance of RohmIf theseresistances were connected in series - the combinationwould have a resistance in ohms - equal to [2004]
6. The resistivity (specific resistance) of a copperwire [2002]
7. A 6 volt battery is connected to the terminals of thethree metre long wire of uniform thickness andresistance of 100 ohmThe difference of potentialbetween two points on the wire separated by a distanceof 50 cm will be [2004]
8. The internal resistance of a 2.1 V cell which gives acurrent of 0.2 A through a resistance of 10 Ω is[NEET2013]
9. A 5-“ampere fuse wire can withstand a maximumpower of 1 watt in the circuitThe resistance of the fusewire is [2005]
10. If the resistance of a conductor is 5 Ω at 50°C and 7Ω at 100°C - then the mean temperature coefficient ofresistance (of the material) is [1996]
11. Direct current is passed through a copper sulphatesolution using platinum electrodesThe elementsliberated at the electrodes are [1993]
12. If nearly 10 5 coulombs liberate 1 gm-equivalent ofaluminium - then the amount of aluminium (equivalentweight 9) - deposited through electrolysis in 20 minutesby a current of 50 ampwill be [1998]
13. Three resistances each of 4: are connected to forma triangleThe resistance between any two terminals is[1993]
14. A wire of a certain material is stretched slowly byten per centIts new resistance and specific resistancebecome respectively : [2008]
15. Si and Cu are cooled to a temperature of 300 K - then resistivity? [2001]
16. The potential difference between the terminals of acell in an open circuit is 2.2 VWhen a resistor of 5 Ω isconnected across the terminals of the cell - the potentialdifference between the terminals of the cell is found tobe 1.8 VThe internal resistance of the cell is [2002]
17. Two cells - having the same e.m.f- are connected inseries through an external resistance RCells haveinternal resistances r 1 and r2 (r1 > r2) respectivelyWhenthe circuit is closed - the potential difference across thefirst cell is zeroThe value of R is [2006][2007]
18. In electrolysis - the amount of mass deposited orliberated at an electrode is directly proportional to[2000]
19. Three equal resistors connected across a source ofe.m.ftogether dissipate 10 watt of powerWhat will bethe power dissipated in watts if the same resistors areconnected in parallel across the same source of e.m.f.?[1998]
20. The rate of increase of thermo-“e.m.fwithtemperature at the neutral temperature of athermocouple [2011]
21. If 25W - 220 V and 100 W - 220 V bulbs areconnected in series across a 440 V line - then [2001]
22. When a wire of uniform cross-“section a - length land resistance R is bent into a complete circle - resistancebetween any two of diametrically opposite points will be[2005]
23. The resistance of an ammeter is 13 Ω and its scaleis graduated for a current upto 100 ampsAfter anadditional shunt has been connected to this ammeter itbecomes possible to measure currents upto 750amperes by this meterThe value of shunt-resistance is[2007]
24. In India electricity is supplied for domestic use at220 VIt is supplied at 110 Vin USAIf the resistance of a60 W bulb for use in India is R - the resistance of a 60 Wbulb for use in USA will be [2004]
25. Two wires of the same metal have same length - buttheir cross-sections are in the ratio 3 ΩThey are joinedin seriesThe resistance of thicker wire is 10 ΩThe totalresistance of the combination will be [1995]

⚡ Recently practiced quizzes in this topic
Live quiz activity
Objective GS (General Studies) in हिन्दी - Indian States & The Company Rajasthan GK Hindi - Fairs & Festivals Objective GS (General Studies) in हिन्दी - Indian Polity - Historical Background of Constitution Objective GS (General Studies) in हिन्दी - Indian Polity - Judiciary Rajasthan GK Hindi - Culture Objective GS in Hindi - General Geography - Air Pressure, Humidity & Air Movement Rajasthan GK Hindi - Energy Rajasthan GK Hindi - Tourism Rajasthan GK Hindi - Rajasthan Introduction Rajasthan GK Hindi - Rivers & Lakes
 
❤ If you liked Fatskills, consider supporting us by checking out The Life Manuals You Never Got.

🌈  Our mission is to help improve your scores in any subject and exam withonline quizzes, practice tests, study guides, & advice for students. Since 2018.
About | Explore | User Guide | Topics | Subjects | Doubt Solver | Career Aptitude Test | Answers | Free Tools | What Should We Know?
Privacy | Terms |
Without work one finishes nothing. - Ralph Waldo Emerson
© 2026 Fatskills.com

All trademarks, logos and brand names are the property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, trademarks and brands does not imply endorsement.