GATE FORUM - Recent questions and answers in Electrical Engineering (EE)
http://gateforum.org//qa/electrical-engineering
Powered by Question2Answerexplain why a valve type lightning arrestor from a transformer in a substation effects its position
http://gateforum.org//2345/explain-why-valve-type-lightning-arrestor-from-transformer-in-substation-effects-its-position
explain why a valve type lightning arrestor from a transformer in a substation effects its position??Electrical Engineering (EE)http://gateforum.org//2345/explain-why-valve-type-lightning-arrestor-from-transformer-in-substation-effects-its-positionSun, 11 Dec 2016 12:16:24 +0000why transformer rating in KVA
http://gateforum.org//2328/why-transformer-rating-in-kva
why transformer rating in KVAElectrical Engineering (EE)http://gateforum.org//2328/why-transformer-rating-in-kvaFri, 16 Sep 2016 07:09:42 +0000Answered: if the rank of a 4*3 (4 cross 3) matrix is 2 then the rank of the product of that matrix and its transpose is.......??
http://gateforum.org//244/if-the-rank-of-a-4-3-cross-matrix-is-2-then-the-rank-of-the-product-of-that-matrix-and-its-transpose-is?show=2302#a2302
2 will be the rank. let rank of A=2; with A'(transpose) rank does not change.<br />
<br />
again when two matrix are multiplied (say A*B) rank will be min(Rank A,Rank B).<br />
<br />
Even as you have multiplied a 4*3 with a 3*4 the output matrix would be of 3*3 and its rank 2.<br />
<br />
If you take in this way that the 4*3 matrix has two linearly independent vectors in it, When it gets multiplied with a 3*4 matrix with 2 two linearly independent vectors in it. <br />
<br />
The the result would again have 2 linearly independent vectors only(as they are linearly independent and the won't cancel out the other and decrease the rank).Electrical Engineering (EE)http://gateforum.org//244/if-the-rank-of-a-4-3-cross-matrix-is-2-then-the-rank-of-the-product-of-that-matrix-and-its-transpose-is?show=2302#a2302Mon, 11 Jul 2016 03:27:27 +0000