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
32369 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

In stepdown transformer 11/415 volt two nos.(R & Y)HT side fuse is blown ,what will be voltage of ry,rb,yb in secondary side

5 Answers NTPC,

in Telecom DC system-why positive +ve is made earthed.and - ve is fed to load.

0 Answers

Why we are designed only 11Kv and 6.6Kv Alternators, not 33Kv Alternators and Power Transmission side we are designed only 220kv, 120kv, 66kv, 33kv, 11kv, and 440volts, not 20kv, 50kv, 100kv.

2 Answers

what is the difference between line & phase current in star delta connection motor?

2 Answers

difference bewteen reverse current and alternating current

0 Answers ABB,

explain the transient reactance

1 Answers

Am using an electronic digital display to see the RPM of ABB ACS 550 drive, which is showing negative value when the motor & drive in stop mode but it is showing correct value during the run mode. can anyone help me out??

2 Answers Bala Power Solutions,

How much of the total hydro power potential has been exploited so far in india?

0 Answers

how to calculate efficiency of voltage and current controlled welding transformer?

1 Answers

If I fill the form of engineering services and I left the exam de to navoidable reasons . Will it counts my one attempt

2 Answers

What is CBCT ? Why & Where it is used?

14 Answers BCT,

when we switch on the switch and load is not connected at home,is electricity wasted?

1 Answers

For more Electrical Engineering Interview Questions Click Here