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Cutting a glass dish from a used electric bulb
The hemispherical bottom of an electric light bulb gives a useful glass dish; a soldering iron can be used to cut it off. put the bulb on its side and make a scratch with a file somewhere with its line of greatest circumference. Carry the soldering iron at an angle of 450 in a laboratory clamp so that the tip is the similar height above the bench as the point of incision. Hold the bulb in both hands and, keeping it horizontal; bring the scratch into contact with the point of the soldering iron.
discovery of electricity
In the case of orientation polarization we have material with built _in dipoles that are independent of each other, i.e. they can rotate liberally in sharp distinction with ionic p
If we have to strain a ferromagnetic crystal along certain direction, we would change the inter atomic spacing not only along this direction but also in other direction. And hence
What are ferrites? Ferrites are ceramic compounds having trivalent metal having three valence electrons, iron and oxide of divalent element
Q. Situation of the converging lens - Principle Ray 1? Principle Ray I . The easy one just as in the case of the converging lens this ray goes straight through the centre of t
Q. Define: current sensitivity of a galvanometer. The current sensitivity of a galvanometer is described as the deflection produced when unit current passes through the galvan
Tuned oscillator
Nickel cadmium batteries -Construction: The plates of a nickel cadmium battery are made by sintering a nickel plated steel screen with nickel carbonyl powder. The resultant pla
Q. A compound microscope consists of an objective lens of focal length 2.0cm and an eye piece of focal length 6.25cm separated by a distance of 15cm.How far from the objective sho
Theory of law of conservation of mechanical energy
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