## Philosophical MagazineTaylor & Francis., 1912 - Physics |

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Page 402

... ion in travelling 1 cm . in the direction of a ; p is the pressure of the gas . Then , if go is the

... ion in travelling 1 cm . in the direction of a ; p is the pressure of the gas . Then , if go is the

**number of ions**starting from the origin and q the number arriving without previous collision at x , we have , since Ndx is the number of ...Page 403

The

The

**number**arriving at the negative electrode is ƒ ( l ) ; so that , if i is the current received by that electrode and e the charge on an**ion**, i / e = (**no**20 nit do ( 7 ) 6. It is immediately clear that this formula cannot be ...Page 676

Calculation of the

Calculation of the

**Number of Ions**and the Energy required to produce an Ion . To get the**number of ions**produced by an alpha particle , the values of the charge given to the plate " A , " as recorded in column 3 , were divided by the ...### Contents

SIXTH SERIES | 1 |

Dr Herbert Stansfield and Mr H P Walmsley on Changes | 25 |

Dr J R Ashworth on the Magnetic Temperature Coefficients | 36 |

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absorption actinium æther alpha rays aluminium angle apparatus approximately assumption atom bands calculated carbon carriers cathode cent charge chlorine coefficient collision constant contact difference corresponding curve deflexion delta rays density determined difference of potential distance drops effect electric electrometer electrons electroscope emission emitted energy equal equation equilibrium ethyl bromide expansion experimental experiments field flame formula gases give given glass heat hydrogen increase intensity ionization ionization current ionization produced isoclinic lines J. J. Thomson light liquid magnetic maximum means measured mercury metal method millimetres molecules motion number of ions observed obtained paper particles Phil plate platinum polonium positive potential difference pressure quantity quartz quaternion radiation radioactive radium ratio reflexion salt secondary shown solution spectrum strip strontium suppose surface Table temperature theory thorium tube values vapour velocity vessel volts wave-length zero