Mutual inductance and coefficient of coupling, Electrical Engineering

Mutual inductance and coefficient of coupling:

The equivalent inductance of two series connected coil (with mutual inductance among them) is 0.8 or 0.2 Henry based on the relative directions of currents in the coil. If self inductance of one coil is 0.4 Henry then find out (a) Mutual inductance; and (b) coefficient of coupling.


For M-Positive :

Leq = L1 + L2 + 2M

0.8 = L1 + L2 + 2M        ---------------- (i)

1950_Mutual inductance and coefficient of coupling.png


For M negative

Leq = L1 + L2 - 2M

0.2  = L1 + L2 - 2M       ----------- (ii)

 From Eqs. (i) and (ii)

0.6 = 4M ⇒ M =0.6/ 4 = 0.15 Henry

But       L1 = 0.4 Henry

∴From Eq. (i)

0.8 = 0.4 + L2  + 2 × 0.15

∴          L2 = 0.1 Henry

 The coefficient of coupling

1397_Mutual inductance and coefficient of coupling1.png

Posted Date: 2/4/2013 4:57:27 AM | Location : United States

Related Discussions:- Mutual inductance and coefficient of coupling, Assignment Help, Ask Question on Mutual inductance and coefficient of coupling, Get Answer, Expert's Help, Mutual inductance and coefficient of coupling Discussions

Write discussion on Mutual inductance and coefficient of coupling
Your posts are moderated
Related Questions
Provide Definition of Signals A continuous-time signal x(t) is a signal that is a function of real number t. For a discrete-time signal x[n], it is a method of discrete time in

Q. A 10-kVA transformer is known to have an iron loss of 150 W and a full-load copper loss of 250 W. If the transformer has the following load cycle, compute its all-day efficiency

Filtering  (i) Write an m-file "mymedian.m" which will take an image and filter size and perform median filtering. Display input and output image. Use  help median fun

Explain Einstein relation. Einstein relation: There exists a significant relation between the diffusion constant and the mobility. It is termed as the Einstein relation and

Question: An evaporator is a device in which a feed stream is concentrated by boiling a solution. A combination of heating and reduced pressure are used to induce the boiling.

Q. What are the different types of coupling in amplifiers? The coupling between stages of amplifications may also be used to classify amplifiers. There are four main groups: di

If the message has a spectrum where K and Wf are positive constants, sketch the spectrum of a standard AM signal that uses the message. Comment on the physical signi?cance

The term representing the energy stored in the coil may be written in terms of the inductance of the coil as... The energy stored in the coil increases with the square of t

Q. Write a note on the application of emitter-follower? An emitter follower can serve as a buffer for a voltage source. The voltage divider at left is a poor voltage source bec