R.h. corkscrew rule, Electrical Engineering

R.h. corkscrew rule

Note the direction of the flux is given by Maxwell's 'R.H. corkscrew rule' and that the flux lines are continuous
Applying  Ampere's  Law  to  a  concentric circular path inside the ring gives:





where l is the  length of the chosen path inside the former. (If  the   radius   of  the   former   is   large compared to the width, then l =2 .pi .r )



1389_R.H. corkscrew rule.png

Where ℜ=l/µµ0 is called  the reluctance of the magnetic path It has been written in this way to show the identical form of the equation to  current flowing in the conductor ie:



where   the   current   I   flows   through   a conductor of resistance R.

Hence the name 'magnetic circuit'

Φ is analogous to current I
N.I is analogous to V
ℜ is analogous to R
The analogy is so strong that the product N.I is often referred to as the 'magnetomotive force' (m.m.f) in analogy with the electro-motive force (e.m.f. or voltage) and


2386_R.H. corkscrew rule 1.png


(σ = conductivity of the material).So we may write:
flux Φ =  m.m.f / circuit reluctance (Analogous to:  I = voltage/resistance in an electrical circuit).

Hence the flux flows more 'easily' through  a material with high µ material - i.e. it requires less m.m.f to produce a given flux in the material, just as current flows more easily through a high conductivity material. If an air gap were now introduced into the core,


2090_R.H. corkscrew rule 2.png

Posted Date: 8/22/2012 4:45:12 AM | Location : United States

Related Discussions:- R.h. corkscrew rule, Assignment Help, Ask Question on R.h. corkscrew rule, Get Answer, Expert's Help, R.h. corkscrew rule Discussions

Write discussion on R.h. corkscrew rule
Your posts are moderated
Related Questions
AC Machines: We have learnt the fundamental concepts of the transformer, induction motors and special type fractional kilowatt (kW) machines. In the section of transformer you

Q. Advanced Mobile Phone System? Cellular systems employed cells with a radius in the range of 5-18 km. The base station usually transmitted at a power level of 35 W or less, a

Q. Show the Enhancement operation of p-channel enhancement mosfet? As the gate terminal is insulated from the channel by the silicon dioxide layer, we can also apply a negative

Q. Determine the voltages V x using voltage division and equivalent resistor reductions for the circuits shown in Figure.

Q. The cutoff frequency of a dominant mode in an air-?lled rectangular waveguide is 3 GHz. What would the cutoff frequency be if the same wave - guide were ?lled with a lossless di

Distribution: This has been recognized as the most critical segment of the electricity business. Here the NEP calls for proper restructuring of distribution utilities for achi

why the primary bushing of 7970/13.8 distribution transformer blown up when connected wye on a 13.8 kv source?

how can i calculate that is following signal is periodic or not? X[n]= ?_(k=-8)^8¦?{d[n-4k]-d[n-1]-4k]}?

Calculation of Aggregate Technical and Commercial Loss The concept of AT&C loss was introduced within 2001-02. The AT&C losses are presently in the range of 18% to 62% in seve

Q. Explain the working principle of a Q meter. Also explain the factors that cause errors during a Q factor measurement. Ans.   Working Principle of Q Meter: the q meter is