Practical Physics for Schools and the Junior Students of Colleges, Τόμος 1Macmillan, 1888 - 221 σελίδες |
Άλλες εκδόσεις - Προβολή όλων
Practical Physics for Schools and the Junior Students of Colleges Balfour Stewart Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2012 |
Practical Physics for Schools and the Junior Students of Colleges; Balfour Stewart,William Winson Haldane Gee Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
angle apparatus Apparatus.-A axis balance bar magnet battery binding screws block of paraffin body box of coils brass cell centimètres centre charge circle circuit condenser conductor connected copper wire cork cylinder deflection diagonal scale diameter dip circle dip needle distance divided divisions earth ebonite ebonite rod electrified electrometer electromotive force electrophorus electroscope Experiment force galvanometer galvanoscope gold leaves gramme grms gutta-percha Hence hole horizontal inch induction instrument insulated knife-edge length LESSON magnetic curves magnetic meridian magnetised MAGNETOMETER means measure metal method mètre millimètres mirror galvanometer moment of inertia negative electricity nitric acid observer Ohm's law opposite outer piece placed plate pointer pole porous pot positive electricity resistance sewing needle silk soft iron soldered steel strip student sulphate sulphuric acid Suppose surface tangent tangent galvanometer terminal touch unit Vernier vertical vibration weight wire-gauge zero zinc
Δημοφιλή αποσπάσματα
Σελίδα 114 - Here the thin vertical lines represent the carbons, the short thick wires the zincs, and the battery is said to be in series. In the diagram there are three cells, supposed to be connected together by wires going from the carbon of one cell to the zinc of the next, and so on. The end of the wire connected with the outer zinc is called the negative pole (written - ), and that connected with the outer carbon is called the positive pole (written + ). When these poles are connected together there will...
Σελίδα 1 - The yard l is defined by Act of Parliament to be the straight line or distance between the centres of two gold plugs in a bronze bar deposited in the office of the Exchequer, the temperature of the bar being 62° Fahr. When it is convenient to use smaller units of length, the foot, or ^ of a yard, and the inch, or -^ of a foot, are employed.
Σελίδα 36 - II. When one body electrifies another by conduction, the total electrification of the two bodies remains the same, that is, the one loses as much positive or gains as much negative electrification as the other gains of positive or loses of negative electrification. For if the two bodies are enclosed in the hollow vessel, no change of the total electrification is observed.
Σελίδα 127 - ROSELEUR.— Galvanoplastic Manipulations : A Practical Guide for the Gold and Silver Electro-plater and the Galvanoplastic Operator.
Σελίδα 36 - ... electrification of the two bodies remains the same, that is, the one loses as much positive or gains as much negative electrification as the other gains of positive or loses of negative electrification. For if the two bodies are enclosed in the hollow vessel, no change of the total electrification is observed. III. When electrification is produced by friction, or by any other known method, equal quantities of positive and negative electrification are produced. For the electrification of the whole...
Σελίδα 38 - It is better, on this account, in graduating the bottle, to make two scratches as represented in the drawing, one at the top and the other at the bottom of the curve : this prevents any future mistake.