1.two coupled coils with L1=L2=0.6 H have a coupling coefficient of k=0.8 the

Categories >> Engineering >> Electrical Engineering
Suggest New Category

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

Question Posted / praveen.erroju

5 Answers
31955 Views
BSNL, SSC, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

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 / ratnakar

as per lenz law
E1=-L1d(i)/dt
E2=-L2d(i)/dt
E1/E2=L1/L2=N1/N1=0.6/0.6=1

this question is asked in IES 2013 hope my answer is clear

Is This Answer Correct ?

76 Yes

8 No

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 / achintya kumar shit

We know that, Inductance L=(N*phai)/l
So, L1/L2=N1/N2
or, 0.6/0.6=N1/N2
or, N1/N2=1

Is This Answer Correct ?

33 Yes

4 No

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 / shekhar

L proportional to N^2
Since L1=L2=0.6
We can assume, N1^2=N2^2=(0.6)^2
Hence, N1/N2=1.

Is This Answer Correct ?

3 Yes

1 No

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 / vinova

well frnd it cant be calculated as you can calculate mutual
inductance M = K*underoot(L1*L2)
Further M=(N1*N2)/S (s is reluctance)so the data in the
above question is insufficent to calculate N1 and N2. if it
is asssumed that both have same length l and both carry
same current and both have equal magnatic field intensity H
then it can be said that N1 and N2 are equal as H*l = N*I
here l s the length of conductor

Is This Answer Correct ?

2 Yes

4 No

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 / praveen.erroju

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

Is This Answer Correct ?

3 Yes

23 No

Post New Answer

More Electrical Engineering Interview Questions

we have total 1000hp motors we paid 7 laks rupees how to reduce power bill

4 Answers

what is the diffrance with elcb,rccb,mcb

2 Answers Thomson,

why the CT ratio secondary is always divided by 5 for eg( 75/5,80/5,50/5)

6 Answers

When we synchronize the Generator BKR with TIE BKR then Gen BKR is hold but TIE BKR is Tripped on Non directional over current but when TIE BKR is Syn. with Gen. BKR then no fault occur so what is the problem

1 Answers ABB,

State norton’s theorem?

0 Answers

How many types of oil using in H/T & L/T Oil Circuit Breakers. need Explenation ?

0 Answers

two generator runnig with parallel but only one NGR on And one off Why

1 Answers

Write the programming software name for LG, SIEMENS,Messung,AB

0 Answers

a power supply to be constructed from voltage cells is required to provide Max. 20A Current with a terminal voltage of 6v.Several voltage cells are available each of which has terminal voltage of 1.5V & each of which can supply a max current of 5A .the no of cells required will be ??

5 Answers

if we run a 3 phase machine on two phase what will happend??? given answer with solid reason please

0 Answers Bhel,

What is the role of the 50 STUB protection at a GIS 400KV substation with SIEMENS protection relays?

0 Answers Power Plant,

What is the armature mmf in a D.C machine?

0 Answers HPCL,

For more Electrical Engineering Interview Questions Click Here