Practical Electrical Testing in Physics and Electrical Engineering: Being a Course Suitable for First and Second Year Students and Others |
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Page 4
... follows , assuming that the " law of inverse . squares " holds good , namely , that the force exerted between two magnetic poles , whether of attraction or repul- sion , is inversely proportional to the square of the distance between ...
... follows , assuming that the " law of inverse . squares " holds good , namely , that the force exerted between two magnetic poles , whether of attraction or repul- sion , is inversely proportional to the square of the distance between ...
Page 8
... follows : - Magnet Length = cms .; section = ; transits in earth's field , n , = per sec . Distance along magnet . Total transits , N. Time , t secs . n1 , ng , ng ,. N1 N2 N3 Hm ( 12 n2 ) . t ( 6 ) Plot a curve having values of ( ” , 2 ...
... follows : - Magnet Length = cms .; section = ; transits in earth's field , n , = per sec . Distance along magnet . Total transits , N. Time , t secs . n1 , ng , ng ,. N1 N2 N3 Hm ( 12 n2 ) . t ( 6 ) Plot a curve having values of ( ” , 2 ...
Page 10
... follows : - N1 = turns ; N2 = turns ; F1 = d1 = dive ; K1 = C.G.S. units ; A¡ = 2NIAI F1 Nadi sq . cms .: First throws . Position on magnet , L. Stray field , F2 = Kida . Sign of deflec- tion , + or - . First . Second . Mean , da . ( 5 ) ...
... follows : - N1 = turns ; N2 = turns ; F1 = d1 = dive ; K1 = C.G.S. units ; A¡ = 2NIAI F1 Nadi sq . cms .: First throws . Position on magnet , L. Stray field , F2 = Kida . Sign of deflec- tion , + or - . First . Second . Mean , da . ( 5 ) ...
Page 11
... follows : - Error ( a ) .— In Fig . 5 , I. , the true dip is AOn or BON , and if there is eccentricity , what we read off at one end is AOn ' , and at the other BON ' ; but , since NN ' nn ' , hence the mean of = the readings at both ...
... follows : - Error ( a ) .— In Fig . 5 , I. , the true dip is AOn or BON , and if there is eccentricity , what we read off at one end is AOn ' , and at the other BON ' ; but , since NN ' nn ' , hence the mean of = the readings at both ...
Page 12
... follows : - Reading of Magnetism reversed . Face of Mean of instrument Means . pointing Upper end . Lower end . Reading of upper end . Reading of lower end . all the observations . East West Therefore angle of " inclination " or " dip ...
... follows : - Reading of Magnetism reversed . Face of Mean of instrument Means . pointing Upper end . Lower end . Reading of upper end . Reading of lower end . all the observations . East West Therefore angle of " inclination " or " dip ...
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Common terms and phrases
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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