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Negative feedback principle:
The idea that in a system where there are self-propagating conditions, those new conditions tend to act against earlier existing circumstances. Such a principle is actually a restatement of a conservation law.
Example Lenz's law.
Due to drift velocity of electrons and due to collision of electrons
Q. Why do you not collapse in the pressure created by the atmosphere? Answer:- If the outward pressure inside your body weren't equal to the pressure pressing in on you an
One side of impregnated paper capacitors is sprayed with metal. When such paper is rolled, its gives higher capacitance for a given value. This capacitor has a self healing proper
homework
Medical uses of cryogenics Low temperature have been used for long term preservation of blood, sperms, bone marrow and tissues. Cryosurgery The cryogenic methods used to
Light is shined into a glass rod. To guarantee the total internal reflection (TIR) happens to all the possible rays, what is the minimum index of refraction n for the glass?
Determine the real position of an air bubble in a glass cube of side 0.3m if the bubble seems to be at a distance of 0.05 m from one face and at 0.15m from the opposite face.
Action and reaction with a roller skate Place a roller skate on a smooth floor. Step on the roller skate with one foot and take a step forward with the other. Observe that the
How to find acceleration from succesive speed?
How to calculate change in entropy.
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