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Joule's laws (J.P. Joule)
Joule's first law
The heat Q generated while a current I pass through a resistance R for a particular time t is given by following
Q = I2 R t
Joule's second law
The internal energy of an ideal gas is independent of its volume & pressure, depending on its temperature only.
Power: The rate of doing work is called power, and it is defined as the work done in unit time. As a formula, this would be: power = work done/time Taken Power is exp
The temperature co-efficient of resistance: The temperature co-efficient of resistance is defined as; The Fractional change in resistance from 0ºC, per degree temp
why electrons do not exist in nucleus
Name the female physicist who received the Nobel Prize in 1963 for her discovery concerning the shell structure of the nucleus. Ans: (Maria Goeppert) Mayer was the first fe
At 200.0 K, silicon has 3.79 x 10 -18 free electrons per atom. How many free electrons/cm 3 are there in silicon at this temperature?
APPLICATIONS OF NEWTON'S LAWS - I 1. The conclusion from F = ma is that if F = 0 then a = 0 ! quite easy! yet how powerful ! This says that for anybody which is no
find acceleration of spacecraft will changed during journey and velocity and displacement if formula for displacement " s " and velocity V S=ut +1/2 at.... (t to power 2) V= u+at
Ferromagnetic materials exhibit magnetic behaviour similar to ferromagnetism below a critical temperature, known as curie temperatures. Above which it turns out to be paramagnetic.
What is Refraction
Question: A person is doing effort to locate the image of an object of a plane mirror by means of a ray-tracing diagram. The person draws a ray by the object which strikes the
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