praveen kumar erroju


{ City } hyderabad
< Country > india
* Profession * student
User No # 21993
Total Questions Posted # 10
Total Answers Posted # 3

Total Answers Posted for My Questions # 26
Total Views for My Questions # 121128

Users Marked my Answers as Correct # 46
Users Marked my Answers as Wrong # 27
Questions / { praveen kumar erroju }
Questions Answers Category Views Company eMail

1.two coupled coils with L1=L2=0.6 H have a coupling coefficient of k=0.8 the turns ratio N1/N2 is......

BSNL, SSC,

5 Electrical Engineering 29928

2. A current i=(10+10 sin t)amperes is passed through MI type ammeter. its reading will be.........

SSC,

Electrical Engineering 2013

3.The slip of an IM UNDER FL condition is about.....

SSC,

1 Electrical Engineering 3429

4.In which type of welding is a pool of molten metal used.....

ISRO, SSC, Vizag Steel,

3 Electrical Engineering 20920

5.WHICH TYPE WELDING PROCESSES USES NON CONSUMABLE ELECTRODE.........

SSC,

Electrical Engineering 1791

6. A DC AMMETER HAS R=0.1 OHM & CURRENT RANGE IS 0-100 A IF THE RANGE IS TO BE EXTENDED TO 0-500 A THEN METER REQUIRES SHUNT RESISTANCE OF ..........

SSC,

2 Electrical Engineering 5890

7. Hrc fuse provides best protection against.......

SSC, UGVCL Uttar Gujarat Vij Company Ltd,

5 Electrical Engineering 15296

8. A DYNAMOMETER TYPE WATTMETER RESPONDS TO THE.......

SSC,

1 Electrical Engineering 8661

9.The material used for coating the electrode is called........

SSC, TELiBrahma,

3 Electrical Engineering 20270

10. THE MOST COMMON TYPE OF THREE PHASE IN UNSYMMETRICAL FAULTS IS ........

SSC,

6 Electrical Engineering 12930



Answers / { praveen kumar erroju }

Question { 3228 }

what is a relation of energy in electromagetic field


Answer

energy in electromagnetic field is =1/2 li2

Is This Answer Correct ?    2 Yes 1 No

Question { BSNL, 29928 }

1.two coupled coils with L1=L2=0.6 H have a coupling
coefficient of k=0.8 the turns ratio N1/N2 is......


Answer

coupling coefficient k=n2/n1
so, n2/n1 =1/k=1/0.8 = 1.25

Is This Answer Correct ?    3 Yes 23 No


Question { SSC, 15296 }

7. Hrc fuse provides best protection against.......


Answer

short circuit

Is This Answer Correct ?    41 Yes 3 No