How to find Service number for TNEB Online Payment

You can now pay your electricity bills through the Tamilnadu Electricity Bill Payment Gateway. I had some confusion with the service number (aka consumer number) while registering in the portal. I thought I could share with you all how I managed to complete the registration.

The first time you enter the wrong invalid service number, the below error message will be displayed


All you need is a little patience and check if you have selected the proper region from the drop-down menu.


The first three characters of the service/consumer number is the section code that denotes your locality. You will find the code for your locality at theWhat is my Region? link at the TNEB Payment Gateway home page (also see useful links below). This will help you correlate the service number written on your white color EB Meter card or printed on previous payment receipts.


Now type in the exact service number in the service no textbox and if it is valid you will get the below message and also the consumer name and address will get auto-populated

Spinors

The concept of spinor is now important in theoretical physics but it is a difficult topic to gain acquaintance with. Spinors were defined by Elie Cartan, the French mathematician, in terms of three dimensional vectors whose components are complex. The vectors which are of interest are the ones such that their dot product with themselves is zero.

Let X=(x₁, x₂, x₃) be an element of the vector space C³. The dot product of X with itself, X·X, is (x₁x₁+x₂x₂+x₃x₃. Note that if x=a+ib then x·x=x²=a²+b² + i(2ab), rather that a²+b², which is x times the conjugate of x.

A vector X is said to be isotropic if X·X=0. Isotropic vectors could be said to be orthogonal to themselves, but that terminology causes mental distress.

It can be shown that the set of isotropic vectors in C³ form a two dimensional surface. This two dimensional surface can be parameterized by two coordinates, z₀ and z₁ where

z₀ = [(x₁-ix₂)/2]^1/2
z₁ = i[(x₁+ix₂)/2]^1/2.
 

The complex two dimensional vector Z=(z₀, z₁) Cartan calls a spinor. But a spinor is not just a two dimensional complex vector; it is a representation of an isotropic three dimensional complex vector.