For natural number n and m, e^m>3, e^n>e^m then, loge(n)^n + loge(m)^m can be:
1.) 1.48 2.) 2.72 3.) 3.55 4.) 4.68 5.) 5.46
solution given
e^m>3 that means m> or = 2 as m is a natural number
e^n>e^m that means n>m i.e. n> or = 3 and n>m
the loge(n)^n+loge(m)^m> or + loge(3)^3 + loge(2)^2
=loge(27)+loge(4)
=loge(n)^n+loge(m)^m > or = loge(27*4) = loge(108)
I can understand up till here but after that the solution says
loge(108) > log3(108) > log3(81) = 4
loge(108) > 4
hence marking 4.) 4.68 why???
can't it be 5.48 5th option and how can we define the upper limit
is'nt the answer incomplete in itself???
Its is space in which I can publish latest known fact under my knowledge to share my expressing power, emotions and my discovery to this amazing world of knowledge
Saturday, January 21, 2012
Wednesday, January 18, 2012
Ways to chillax yourself
After working days and night for a particular project you still feel it is not yourside 100% that you are giving to your project...just this is the right time for you to take a break...it is much needed...after feeling the pressure just take chillax which is the word came from some other's invention who has put this word like - relax + chill so it is now chillax...please swipe the word to see the effect...so take a break from job...from study...from project and what not...engage yourself with movie, a cold glass of water...a sleepish holiday...chilling joyfull party...and enjoy...enjoy yourself without tension of tomorrow because only when your mind be cool then your work will be full-proof...so are you ready to chillax...!!!
Saturday, December 31, 2011
Working at Power Plant
Working at power plant has never been an easy job, and never been thought for the same. But it always gives you challenges ahead of schedule, like you never know what and how the day can turn around. Nevertheless sometime you know it and can't change it, like of today I know, I am missing a lot without friends on 31th night, the last night of year where ever body is suppose to do something special. But being in plant, specially power plant like place making some people work for the happiness of all the other outside who are enjoying...you are there for there happiness so I can console myself on that basis...
Wednesday, August 17, 2011
Selecting conductor for transmission line
How to calculate for transmission line conductor for a particular megawatt power?
Suppose 1000 MW power is transmitted through a particular conductor, first calculate the current for that megawatt power taking a voltage level as constant for this case we have taken 400 KV. The current comes to (1000x103)/0.732x400x1)=4018.00 amps, taking on account for double circuit (4018/2)=2009 amps; which is comparable to twin moose conductor which has 2056 amps current carrying capacity at 50oC.
Suppose 1000 MW power is transmitted through a particular conductor, first calculate the current for that megawatt power taking a voltage level as constant for this case we have taken 400 KV. The current comes to (1000x103)/0.732x400x1)=4018.00 amps, taking on account for double circuit (4018/2)=2009 amps; which is comparable to twin moose conductor which has 2056 amps current carrying capacity at 50oC.
Tuesday, April 19, 2011
Photography, in its understanding
After reading an article on photography, I realized that mega pixels of camera is not the deciding factor in opting for one of them. The resolution of the camera is only a factor that we all account for, but it has certain limitations of its own. That means that for us to view any photo on our computer screen or print it from a printer all depends on more factors like sensor, focus, steadiness of hand, stability of photo, ISO, its modes(feature available in cameras). The resolution in capturing image is important factor as it to be presented, for instant if any particular image is absorbed by the camera is of good resolution the output we see should also match for the same, what is the point in absorbing any image more than what it could be presented.
So, 5 megapixels are enough for usage. It does not mean that more than it is unaccountable but optimization of it is not possible. High megapixel mean as the systems will also take much of time to process or otherwise we need heavy ram to realize it which apparently increase the cost.
Therefore getting good specification is not considered to be wise unless otherwise utilized.
So, 5 megapixels are enough for usage. It does not mean that more than it is unaccountable but optimization of it is not possible. High megapixel mean as the systems will also take much of time to process or otherwise we need heavy ram to realize it which apparently increase the cost.
Therefore getting good specification is not considered to be wise unless otherwise utilized.
Wednesday, April 6, 2011
Now power substation comes in a box
Here at Bangalore, I found package substation beside road which primarily is used to reduce the size of a substation in a cubical of rated capacity of 750 kVA, which steps down 11kV to 433V. The important point that is eye caching here is that this cubical contains four circuit breaker, five mccb, instrumentation system a copper wound transformer and two grounding points. This transformer is specially manufacted to this design so as to reduce the size upto one third, manufactured by Kotsons company. The transformer is hermatically sealed without conservator, breather. The oil tank is vaccumized to reduced the space for conservator.
Monday, April 4, 2011
Hotline Maintainance
Hotline maintainance mean working on live line and maintaining the same when power is on mode. This is done by two methods that are bare hand method and hot stick method. Both method are equally important for a maintainance engineer. In bare hand method the person had wear a conductive suit that is made of microscopic stainless steel and normex material and then anyone can work on higher voltage. And hot stick method is by use of a special stick that have high insulation capacity...
Subscribe to:
Posts (Atom)