Elements of Construction for Electro-magnetsE. & F. N. Spon, 1883 - 86 sider |
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Side
... varying nature of the iron em- ployed in electro - magnets we can never be certain that the real results correspond with the theoretical . What , however , may be taken as certain is , that electro - magnets constructed and used in ...
... varying nature of the iron em- ployed in electro - magnets we can never be certain that the real results correspond with the theoretical . What , however , may be taken as certain is , that electro - magnets constructed and used in ...
Side 7
... varying the size of the wire for a con- stant depth a of the coils , we vary not only its resistance but also its length - two properties which vary in the same proportion - the quantity H taken Formulas for Electro - Magnets . 7.
... varying the size of the wire for a con- stant depth a of the coils , we vary not only its resistance but also its length - two properties which vary in the same proportion - the quantity H taken Formulas for Electro - Magnets . 7.
Side 8
comte Th Du Moncel. vary in the same proportion - the quantity H taken as representing the resistance of the coil instead of being in inverse proportion to g2 , will be in inverse proportion to g4 ; but the quantity q R g2 which is not ...
comte Th Du Moncel. vary in the same proportion - the quantity H taken as representing the resistance of the coil instead of being in inverse proportion to g2 , will be in inverse proportion to g4 ; but the quantity q R g2 which is not ...
Side 10
... vary the depth a of the coils , supposing the action of the turns to be about equal , which we may admit under the ordinary conditions of electro- magnets , taking into account the differences of resis- tance wrought by their greater or ...
... vary the depth a of the coils , supposing the action of the turns to be about equal , which we may admit under the ordinary conditions of electro- magnets , taking into account the differences of resis- tance wrought by their greater or ...
Side 11
... varies , and is undetermined in the researches which we have to make , it is the first of these conditions which ought to be considered in the construction of electro- magnets . But for one who wishes to ascertain what is the resistance ...
... varies , and is undetermined in the researches which we have to make , it is the first of these conditions which ought to be considered in the construction of electro- magnets . But for one who wishes to ascertain what is the resistance ...
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according advantage armature arrangement Assoc attractive force battery bobbins Bunsen cell calculations centi centimetre circuit of resistance cloth conditions of maximum consequence consider crown 8vo cube Daniell cells deductions depth diameter dimensions distance electric intensity Electric Lighting Electric Telegraph electro-motive force equal experiments expression exterior circuit exterior resistance Fcap FLEEMING JENKIN galvanometer given circuit given electro-magnet grammes Inst insulating covering iron core kilometres laws length less magnetic core magnetic saturation magnetising coils maximum conditions metres of telegraph millimetre Muller number of cells number of elements number of turns obtain ohms P. L. SIMMONDS plates Pocket-Book poles Practical Treatise preceding formulas proportion quantity ratio Second edition sewed Society of Telegraph standard electro-magnet suppose Tables Telegraph Engineers telegraph wire thickness Third edition three electro-magnets tion total number total resistance vary
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