Anti-intellectualism in American LifeKnopf, 1970 - 434 pages |
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Page 171
... wire , becoming weaker with distance from the wire but not diminishing to zero except at an infinite distance . If the current is increased or decreased , the field intensity varies accordingly . The direction of the lines of force ...
... wire , becoming weaker with distance from the wire but not diminishing to zero except at an infinite distance . If the current is increased or decreased , the field intensity varies accordingly . The direction of the lines of force ...
Page 174
... wire and the main field add at the top and cancel below the wire . The crowded lines of force push down more than the weaker field pushes up , and as a result the wire is forced downward , tending to relieve the distorted field . In the ...
... wire and the main field add at the top and cancel below the wire . The crowded lines of force push down more than the weaker field pushes up , and as a result the wire is forced downward , tending to relieve the distorted field . In the ...
Page 180
... wire of 10 2 resistance at 20 ° C . What will be its resistance at ( a ) + 120 ° C ; ( b ) 1020 ° C ? 12.7 A copper wire for electrical distribution has a resistance of 48 ohms . If aluminum wire of the same size is used , what will be ...
... wire of 10 2 resistance at 20 ° C . What will be its resistance at ( a ) + 120 ° C ; ( b ) 1020 ° C ? 12.7 A copper wire for electrical distribution has a resistance of 48 ohms . If aluminum wire of the same size is used , what will be ...
Table des matières
Conception of the Universe | 2 |
Systems of Measuring Units and Some Basic Physical | 11 |
Energy and Related Concepts | 20 |
Droits d'auteur | |
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acceleration alpha particle altitude amount angle applied atmosphere atomic number axis beam beta particle body called charged particles chemical circuit coil color container cosmic rays curve direct current direction discussed distance Doppler effect earth effect electrical electromagnetic radiation electron volts electrons electrostatic emitted equator example fluorescent force frequency glass gravity greater heat hertz Huygen's principle hydrogen incandescent increase infrared intensity ionization joules kinetic energy lamp length lens light lines liquid magnetic field mass material measured mechanical meter miles mirror molecules motion move muscle neutrons normal nuclear nucleus object observe optical orbit path phenomena physical polarized poles positive pressure waves protons radio radioactive reflection result rotation shown in Fig signal sound space spectrum speed stars surface temperature thermal tube ultraviolet unit vapor velocity vibrating visible voltage volts wavelengths weight wire X-rays