9394949438

[LATEST]$type=sticky$show=home$rm=0$va=0$count=4$va=0






Current Electricitry Quiz-11

Dear Readers,

As per analysis for previous years, it has been observed that students preparing for NEET find Physics out of all the sections to be complex to handle and the majority of them are not able to comprehend the reason behind it. This problem arises especially because these aspirants appearing for the examination are more inclined to have a keen interest in Biology due to their medical background. Furthermore, sections such as Physics are dominantly based on theories, laws, numerical in comparison to a section of Biology which is more of fact-based, life sciences, and includes substantial explanations. By using the table given below, you easily and directly access to the topics and respective links of MCQs. Moreover, to make learning smooth and efficient, all the questions come with their supportive solutions to make utilization of time even more productive. Students will be covered for all their studies as the topics are available from basics to even the most advanced. .

Q1. A metallic block has no potential difference applied across it, then the mean velocity of free electrons at absolute temperature T is?
  •  Proportional to T
  •  Proportional to √T
  •  Zero
  •  Finite but independent of T
Solution
In the absence of electric field (or potential difference applied) across the conductor, the average thermal velocity of electron is zero

Q2. Two bulbs of 500 W and 200 W are manufactured to operate on 220 V line. The ratio of heat produced in 500 W and 200 W, in two cases, when firstly they are connected in parallel and secondly in series will be ?
  •  5/2:2/5
  •  5/2:5/2
  •  2/5:5/2
  •  2/5:2/5
Solution
In parallel, H1/H2 =(P1 t)/(P2 t)=P1/P2 =500/200=5/2 In series, H1/H2 =(I2 R1 t)/(I2 R2 t)=R1/R2 =(V2/P1)/(V2/P2 ) =P2/P1 =200/500=2/5

Q3. The arrangement as shown in figure is called as ?

  •  Potential divider
  •  Potential adder
  •  Potential substracter
  •  Potential multiplier
Solution
Potential divider

Q4. A fuse wire with radius 1 mm blows at 1.5 A. The radius of the fuse wire of the same material to blow at 3 A will be?
  •  31/4 mm
  •  41/3 mm
  •  31/2 mm
  •  21/3 mm
Solution
The temperature of the wire increase to such a value at which the heat produced per second equals heat lost per second due to radiation. i2 (ρl/(πr2 ))=H×2πrl Where H is heat lost per second per unit area due to radiation. Hence, i2∝r3 So, (i12)/(i22 ) = (r13)/(r23 ) Or r2=r1 (i2/i1 )2/3 [Here∶r1=1 mm,i1=1.5 A,i2=3 A] r2=1×(3/1.5)2/3=41/3 mm

Q5. Two cells of same emf E but of different internal resistances r1and r2 are connected in series with an external resistance R. The potential drop across the first cell is found to be zero. The external resistance R is ?
  •  r1+r2
  •  r1-r2
  •  r2-r1
  •  r1 r2
Solution
 As both cells are in series, the circuit current i= (E+E)/(r1+r2+R)=2E/(r1+r2=R) As terminal potential drop across 1st cell is zero, hence V1=E-ir1=E-2E/((r1+r2+R)) r1=0 

⇒ E=(2Er1)/((r1+r2+R)) orr1+r2+R=2r1=R=(r1-r2)


Q6. In a conductor if 3000 coulomb of charge enters and 3000 coulomb of charge exits in time 10 minutes, then the current is?
  •  5 ampere
  •  10 ampere
  •  2.5 ampere
  •  Zero
Solution
Current, I=q/t=3000C/(10×60s)=5A

Q7. The resistivity of alloys =Ralloy; the resistivity of constituent metals Rmetal. Then, usually?
  •  Ralloy=Rmetal
  •  Ralloy less than Rmetal
  •  There is no simple relation between Ralloy and Rmetal
  •  Ralloy>Rmetal
Solution
Ralloy>Rmetal

Q8. If the temperature of cold junction of thermocouple is lowered, then the neutral temperature?
  •  Increases
  •  Approaches inversion temperature
  •  Decreases
  •  Remains the same
Solution
Neutral temperature is independent of temperature of cold junction.

Q9. For obtaining chlorine by electrolysis a current of 100 kW and 125 V is used. (Electro chemical equivalent of chlorine is 0.367 ×kgC-1). The amount of chlorine obtained in one minute will be?
  •  1.7616 g
  •  17.616 g
  •  0.17161 g
  •  1.7616 kg
Solution
The amount of chlorine m=zlt=z(P/V) t [∵P=VI] =0.367×10-6×((100×1000)/125)×60 =0.017616 kg=17.616 g

Q10. The current in a conductor varies with time t as I=2t+3t2 where I is in ampere and t in seconds. Electric charge flowing through a section of the conductor during t=2 sec to t=3 sec is?:
  •  10 C
  •  24 C
  •  33 C
  •  44 C
Solution



Want to know more

Please fill in the details below:

INNER POST ADS

Latest IITJEE Articles$type=three$c=3$author=hide$comment=hide$rm=hide$date=hide$snippet=hide

Latest NEET Articles$type=three$c=3$author=hide$comment=hide$rm=hide$date=hide$snippet=hide

Name

Admissions,1,Alternating Current,60,AP EAMCET 2020,1,Basic Maths,2,BCECE 2020,1,best books for iit jee,2,best coaching institute for iit,1,best coaching institute for iit jee preparation,1,best iit jee coaching delhi,1,best iit jee coaching in delhi,2,best study material for iit jee,4,BITSAT Registration 2020,1,Blog,62,books for jee preparation,1,books recommended by iit toppers,3,Capacitance,3,CBSE,1,CBSE accounts exam,1,CBSE boards,1,CBSE NEET,9,cbse neet 2019,3,CBSE NEET 2020,1,cbse neet nic,1,Centre of Mass,2,Chemistry,58,Class 12 Physics,15,coaching for jee advanced,1,coaching institute for iit jee,2,Collision,2,COMEDK UGET 2020 Application Form,1,COMEDK UGET 2020 Exam Form,1,COMEDK UGET news,1,CUCET 2020,2,Current Electricity,4,CVR college,1,Electromagnetic Induction,3,Electronics,1,Electrostatics,3,Energy,1,Fluid Mechanics,4,Gravitation,2,GUJCET 2020 Application Form,1,Heat,4,iit admission,1,iit advanced,1,iit coaching centre,3,iit coaching centre in delhi,2,iit coaching classes,2,iit coaching in delhi,1,iit coaching institute in delhi,1,iit entrance exam,1,iit entrance exam syllabus,2,iit exam pattern,2,iit jee,5,iit jee 2019,3,iit jee advanced,2,iit jee books,3,iit jee coaching,2,iit jee exam,3,iit jee exam 2019,1,iit jee exam pattern,3,iit jee institute,1,iit jee main 2019,2,iit jee mains,3,iit jee mains syllabus,2,iit jee material,1,iit jee online test,3,iit jee practice test,3,iit jee preparation,6,iit jee preparation in delhi,2,iit jee preparation time,1,iit jee preparation tips by toppers,2,iit jee question paper,1,iit jee study material,3,iit jee study materials,2,iit jee syllabus,2,iit jee syllabus 2019,2,iit jee test,3,iit preparation,2,iit preparation books,5,iit preparation time table,2,iit preparation tips,2,iit syllabus,2,iit test series,3,IITJEE,100,IPU CET,1,JEE Advanced,83,jee advanced exam,2,jee advanced exam pattern,1,jee advanced paper,1,JEE Books,1,JEE Coaching Delhi,3,jee exam,3,jee exam 2019,6,JEE Exam Pattern,2,jee exam pattern 2019,1,jee exam preparation,1,JEE Main,85,jee main 2019,4,JEE Main 2020,1,JEE Main 2020 Application Form,2,JEE Main 2020 news,2,JEE Main 2020 Official Answer Key,1,JEE Main 2020 Registration,1,JEE Main 2020 Score,1,JEE Main application form,1,jee main coaching,1,JEE Main eligibility criteria,3,jee main exam,1,jee main exam 2019,3,jee main online question paper,1,jee main online test,3,JEE Main Paper-2 Result,1,jee main registration,2,jee main syllabus,2,JEE mains 2020,1,jee mains question bank,1,jee mains test papers,3,JEE Mock Test,2,jee notes,1,jee past papers,1,JEE Preparation,2,jee preparation in delhi,1,jee preparation material,4,JEE Study Material,1,jee syllabus,6,JEE Syllabus Chemistry,1,JEE Syllabus Maths,1,JEE Syllabus Physics,1,jee test series,3,KCET - 2020,1,Kinematics,1,Latest article,5,Latest Articles,61,Latest News,34,latest news about neet exam,1,Laws of Motion,2,Magnetic Effect of Current,3,Magnetism,3,MHT CET 2020,2,MHT CET 2020 exam schedule,1,Modern Physics,1,NCERT Solutions,15,neet,3,neet 2019,1,neet 2019 eligibility criteria,1,neet 2019 exam date,2,neet 2019 test series,2,NEET 2020,2,NEET 2020 Application Form,1,NEET 2020 Eligibility Criteria,1,NEET 2020 Registration,1,neet application form,1,neet application form 2019 last date,1,Neet Biology Syllabus,1,Neet Books,3,neet eligibility criteria,3,neet exam 2019,7,neet exam application,1,neet exam date,1,neet exam details,1,neet exam pattern,6,neet exam pattern 2019,2,neet examination,1,neet mock test 2019,1,Neet Notes,3,Neet Online Application Form,3,neet online test,2,neet past papers,1,neet physics syllabus,1,neet practice test,2,NEET preparation books,1,neet qualification marks,1,NEET question paper 2019,1,neet question papers,1,neet registration,1,Neet Study Material,3,neet syllabus,6,neet syllabus 2019,5,NEET Syllabus 2020,1,neet syllabus chemistry,1,neet syllabus for biology,1,neet syllabus for physics,1,neet test series,1,neet ug 2019,2,news,5,online study material for iit jee,1,Optical Instruments,1,Physics,110,physics books for iit jee,1,Power,1,Practical Physics,1,Quiz,5,Ray Optics,1,Rotational Motion,3,SHM,3,Simple Harmonic Motion,3,study materials for iit jee,1,Study Notes,110,study notes for iit jee,1,Thermodynamics,4,TS EAMCET Notification,2,Units and Dimensions,1,UPSEE 2020,1,UPSEE 2020 Application Form,2,UPSEE EXAM,1,Vectors,2,VITEE Application form,1,Wave Motion,3,Wave Optics,1,WBJEE 2020 Admit Card,1,WBJEE 2020 Answer Key,1,Work,1,
ltr
item
BEST NEET COACHING CENTER | BEST IIT JEE COACHING INSTITUTE | BEST NEET, IIT JEE COACHING INSTITUTE: Current Electricity Quiz 11
Current Electricity Quiz 11
https://1.bp.blogspot.com/-RQB5HTDajU0/X56KcJd6d3I/AAAAAAAACeA/uEa8cEqbOzUoD7PQxSnOrdw9lElZQFO_wCLcBGAsYHQ/w462-h243/Quiz%2BImage%2BTemplate%2B%252810%2529%2B%25282%2529.jpg
https://1.bp.blogspot.com/-RQB5HTDajU0/X56KcJd6d3I/AAAAAAAACeA/uEa8cEqbOzUoD7PQxSnOrdw9lElZQFO_wCLcBGAsYHQ/s72-w462-c-h243/Quiz%2BImage%2BTemplate%2B%252810%2529%2B%25282%2529.jpg
BEST NEET COACHING CENTER | BEST IIT JEE COACHING INSTITUTE | BEST NEET, IIT JEE COACHING INSTITUTE
https://www.cleariitmedical.com/2020/11/CurrentElectricityQuiz11.html
https://www.cleariitmedical.com/
https://www.cleariitmedical.com/
https://www.cleariitmedical.com/2020/11/CurrentElectricityQuiz11.html
true
7783647550433378923
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS CONTENT IS PREMIUM Please share to unlock Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy