Lessons in elementary physics1884 |
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Σελίδα 260
... needle will always , if free to move , place itself at right angles to an electric current . Thus in Fig . 94 , let B repre- sent a plate of bismuth , and C C C a plate of copper soldered to the bismuth , while n s is a magnetic needle ...
... needle will always , if free to move , place itself at right angles to an electric current . Thus in Fig . 94 , let B repre- sent a plate of bismuth , and C C C a plate of copper soldered to the bismuth , while n s is a magnetic needle ...
Σελίδα 262
... needle , taking care to insulate the various folds from each other . Now , if a current pass through this coil , it will tend to make the needle lie at right angles to the plane of the coil ; but , on the other hand , the magnetic ...
... needle , taking care to insulate the various folds from each other . Now , if a current pass through this coil , it will tend to make the needle lie at right angles to the plane of the coil ; but , on the other hand , the magnetic ...
Σελίδα 303
... needle ( Fig . 110 ) , made of some non - conducting substance , such as shellac , suspended by a very fine wire . There is a small disc of copper fixed at one extremity of this needle . There is likewise a vertical glass rod ...
... needle ( Fig . 110 ) , made of some non - conducting substance , such as shellac , suspended by a very fine wire . There is a small disc of copper fixed at one extremity of this needle . There is likewise a vertical glass rod ...
Σελίδα 304
... needle is capable of moving independently of the tube , and there is a small circle at the top which registers the ... needle will thereafter be repelled by the pith ball , since both are charged with the same kind of electricity . The ...
... needle is capable of moving independently of the tube , and there is a small circle at the top which registers the ... needle will thereafter be repelled by the pith ball , since both are charged with the same kind of electricity . The ...
Σελίδα 313
... needle CD is arranged so as to be suspended from C by a thread perpendicular to the plane of the paper ; that is to say , the metallic needle is all on one side of its B point of suspension , or , if balanced ,. LESS . XXXIX . 313 ...
... needle CD is arranged so as to be suspended from C by a thread perpendicular to the plane of the paper ; that is to say , the metallic needle is all on one side of its B point of suspension , or , if balanced ,. LESS . XXXIX . 313 ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
49 metres 98 metres action actual energy angle annealed applied atmosphere attraction ball beam carbonic acid carriage centre of gravity chemical affinity column compression cubic cubic centimetre cylinder denote density displacement distance double earth electricity energy of position equilibrium experiments fact fall fluid focus force of gravity force tending friction gases glass grammes hence increase instance kilogrammes latent heat law of motion length let us suppose liquid luminous mass means mercury metres per second miles mirror molecular momentum moving force oscillation particles pendulum piston plane plate pressure produce proportional ray of light represent resistance rest side solid sound space passed specific gravity specific heat square centimetre steam stone string substance temperature thermometer tube unit upwards vapour various velocity of 98 vertical vessel vibration visible energy visible motion volume wave wave-length weight whole zinc
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