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If CBSE Resultsare delayed further, the fate of many students from CBSE schools
may be at stake. They will find it difficult to get admissions in colleges as
most of the state board exam results are already declared and the admissions to
various undergraduate courses is in progress. Delayed results will reduce the
chance of [...] No related posts.
An astronaut on the moon wishes to calculate the local g in the area. He sets
up a wire with a mass of 1.7 grams and hanging from it an object with mass 4.98
kg. He sends some kind of pulse down the wire and calculates that it takes
40.86 ms to traverse the wire. [...]
A small liquid drop is held steady in an electric field of intensity E,the
charge of the liquid drop is q when the field is reversed what is the new
accelaration,if viscous force is negligible? Answer:
Why hasn’t anyone measured the speed of gravity yet? As in, how long does it
take for the gravitational field of a mass to affect another mass? Musaddiq
Sajjad asked. Answer: Who said that speed of gravity waves is not measured?
Please go through the links below and you ca get details,
http://www.newscientist.com/article/dn3232-first-speed-of-gravity-measurement-revealed.html
http://en.wikipedia.org/wiki/Speed_of_gravity
http://scienceblogs.com/startswithabang/2010/08/what_is_the_speed_of_gravity.php
[...]
1. Do the protons flow when current flow? 2. In case of semiconductor do the
holes flow? Animesh asked Answer: In metallic conductors, free electrons are
the current carriers, i.e, it is due to the motion of the free electrons that
conduction takes place in a metallic conductor. The protons do not move as they
[...]
The CBSE Results 2012 for class 10 and 12 are likely to be announced around 20
May 2012. The exact dates will be provided soon. The results will be made
available at http://cbseresults/nic.in and results.gov.in Lakhs of children who
wrote the exam are eagerly waiting for the results. Usually CBSE publishes its
result by 2nd [...]
Be the owner of a fast growing Social Nertwork. Join, invite friends and own We
found Zurker a worthy Social Networking site with huge potential. I invite you
too to join and enjoy. One of the great things about Zurker is that you
can own a stake in it. You can Invite your friends to Zurker [...] No related
posts.
We know that the potential developed at a point by a charge is the negative of
the work done to bring a unit charge at that point from infinity. But how does
a conducting plate develop a potential? what is the work done? Answer: I can
smell some misconceptions in your question. It is better [...]
A high voltage transmission line has an aluminum cable of diameter 3.0 cm , 200
km long . What is the resistance of this cable? Harleen asked Answer: Use the
relation R = ρ l/A A= πr2 =πd2/4 = 3.14 x 3 x 10-2x 3 x 10-2/4
ρ= 2.82×10−8 ohm m l = 200km = 200000 m = 2 [...]
A passenger in a moving train tossed a coin which falls behind him .State the
type of motion of the train ? Answer: The train is in accelerated motion.
Explanation If the train were moving with uniform velocity, the coin would fall
back to the passenger’s hand (This is due to the inertia of motion [...]


