A Laboratory Course in Everyday PhysicsMacmillan, 1931 - 205 σελίδες |
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Σελίδα 169
... magnet or lodestone . If a piece of steel is stroked with a natu- ral magnet , it acquires the property of attracting iron or steel , and is known as an artificial magnet . Other ways of making artificial magnets are described below .
... magnet or lodestone . If a piece of steel is stroked with a natu- ral magnet , it acquires the property of attracting iron or steel , and is known as an artificial magnet . Other ways of making artificial magnets are described below .
Σελίδα 170
... magnet . The other end is called the south pole . If we suspend a magnet in a stirrup and then bring the north pole of another magnet near the north pole of the suspended magnet , we find that they repel each other . If , however , we ...
... magnet . The other end is called the south pole . If we suspend a magnet in a stirrup and then bring the north pole of another magnet near the north pole of the suspended magnet , we find that they repel each other . If , however , we ...
Σελίδα 171
... magnet . If a small compass is placed near the north pole of a magnet and then moved a short distance at a time in the direction its north pole points , it ... magnetic field about a horseshoe magnet . FIG. MAGNETISM AND THE ELECTROMAGNET ...
... magnet . If a small compass is placed near the north pole of a magnet and then moved a short distance at a time in the direction its north pole points , it ... magnetic field about a horseshoe magnet . FIG. MAGNETISM AND THE ELECTROMAGNET ...
Περιεχόμενα
CHAPTER | 1 |
CHAPTER II | 13 |
CHAPTER III | 20 |
Πνευματικά δικαιώματα | |
16 άλλες ενότητες δεν εμφανίζονται
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
amperes appliances armature atmosphere B. T. U. of heat bell body boiling point Boyle's law British Thermal Unit calories carbon centimeter coil cold water compressed convection cooled copper cubic cylinder Daniell cell density diagram direction distance dynamo electric current electromagnet electromotive force engine equal evaporation example exerted expands experiment fire flask foot pounds force arm fruit press fulcrum gases glass gram hot-water induced current iron jackscrew Joule's law lamp latent heat Leclanché cell lens lever lines of force liquid magnetic lines measure mercury metal meter molecules motor moves north pole object Ohm's law ohms Pascal's law passes pipe piston placed plate poundals pressure produced radiation rays resistance screw shown in Fig sound south pole square inch steam stove stroke substance surface tank temperature thermometer tube turned vacuum valve velocity vibration volts volume warmed watts waves weight arm wire