Practical Electrical Testing in Physics and Electrical Engineering: Being a Course Suitable for First and Second Year Students and OthersLongmans, Green, 1901 - 392 страници |
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Страница 2
... magnetic induction produced in a sample of iron and the magnetizing force causing it . The first - named is what is called the relative " calibration curve of the galvanometer . If , however , the values of current , c , were in amperes ...
... magnetic induction produced in a sample of iron and the magnetizing force causing it . The first - named is what is called the relative " calibration curve of the galvanometer . If , however , the values of current , c , were in amperes ...
Страница 3
... Magnetizing force , H. Values of deflection ( D ) 25 FULL LINE CORRECT CURVE ( MEAN ) 20 DOTTED LINE INCORRECT CURVE 19 -003 -005 -00-4 Values of Current ( C ) FIG . I. 5,000 3'2 6,000 3'9 7,000 6.0 8,000 5'4 9,000 6.3 10,000 6.1 11,000 ...
... Magnetizing force , H. Values of deflection ( D ) 25 FULL LINE CORRECT CURVE ( MEAN ) 20 DOTTED LINE INCORRECT CURVE 19 -003 -005 -00-4 Values of Current ( C ) FIG . I. 5,000 3'2 6,000 3'9 7,000 6.0 8,000 5'4 9,000 6.3 10,000 6.1 11,000 ...
Страница 6
... magnetization or the number of lines of force inside the magnet is greatest here at this point , and diminishes towards the ends , where the amount of free magnetism is a maximum . Hence any external magnetic effect of the magnet on ...
... magnetization or the number of lines of force inside the magnet is greatest here at this point , and diminishes towards the ends , where the amount of free magnetism is a maximum . Hence any external magnetic effect of the magnet on ...
Страница 21
... magnetizing force and magnetic induction in the iron parts . It is , of course , well known that the particular form ... force in the various parts of the machine and the space surrounding it . The principle upon which this method of ...
... magnetizing force and magnetic induction in the iron parts . It is , of course , well known that the particular form ... force in the various parts of the machine and the space surrounding it . The principle upon which this method of ...
Страница 138
... force must be accurately known in order that that method shall be accurate ... magnetizing solenoid 3 or 4 feet long , of wire uniformly wound on a non ... magnetizing coil , the magnetizing or magnetic 4CT force H at and near its centre ...
... force must be accurately known in order that that method shall be accurate ... magnetizing solenoid 3 or 4 feet long , of wire uniformly wound on a non ... magnetizing coil , the magnetizing or magnetic 4CT force H at and near its centre ...
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Често срещани думи и фрази
abscissæ accurate adjust the galvanometer amperes amps apparatus arrangement axis balance ballistic galvanometer battery C₁ capacity cells centre charge circuit coil condenser connected constant convenient copper Crown 8vo curve d₁ deflection Diagrams dip circle discharge E₁ earth ebonite electrometer farads fixed galvanometer resistance Hence high-resistance horizontal Illustrations inductor Inferences instrument insulated internal resistance K₁ Leclanché cells lines of force magnetic moment magnetizing force magnetometer means measuring method mirror galvanometer mutual induction Note the values Observations.-(1 obtained Ohm's law ohms pairs plates plug pole position potential quadrants quantity of electricity R₁ R₂ Repeat resistance box results as follows reversing rheostat scale screws secohmmeter secohms self-induction sensitive shown in Fig shunt solenoid specimen spot of light standard steady current suitable tabulate as follows tabulate your results tangent galvanometer temperature terminals tested throw tube V₁ V₂ volts Wheatstone bridge wire Woodcuts zero
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