Practical Electrical Testing in Physics and Electrical Engineering: Being a Course Suitable for First and Second Year Students and Others |
From inside the book
Results 1-5 of 72
Page 9
... light to zero . ( 2 ) Make sure , by trial , at the start that the first throw ( d ) on G , produced by letting I slip in its frame by its own weight , is just on the scale ; alter the controlling magnet of G to get this if necessary ...
... light to zero . ( 2 ) Make sure , by trial , at the start that the first throw ( d ) on G , produced by letting I slip in its frame by its own weight , is just on the scale ; alter the controlling magnet of G to get this if necessary ...
Page 10
... light must be absolutely at rest prior to slipping . ( 4 ) Repeat ( 3 ) about every 4 or 5 cms . along M , and tabulate as follows : - N1 = turns ; N2 = turns ; F1 = d1 = dive ; K1 = C.G.S. units ; A¡ = 2NIAI F1 Nadi sq . cms .: First ...
... light must be absolutely at rest prior to slipping . ( 4 ) Repeat ( 3 ) about every 4 or 5 cms . along M , and tabulate as follows : - N1 = turns ; N2 = turns ; F1 = d1 = dive ; K1 = C.G.S. units ; A¡ = 2NIAI F1 Nadi sq . cms .: First ...
Page 24
... light to zero by slightly moving the scale if necessary . ( 5 ) Place the same magnetic needle , which in the meanwhile has been carefully guarded against vibration , on the sliding carriage ( capable of moving along the magnetometer ...
... light to zero by slightly moving the scale if necessary . ( 5 ) Place the same magnetic needle , which in the meanwhile has been carefully guarded against vibration , on the sliding carriage ( capable of moving along the magnetometer ...
Page 27
... light on the scale is— d∞ ( Q1 - Q2 ) { N − } ( Q1 + Q2 ) } - from which we see that d is more nearly & Q1 - Q2 , and that the sensibility of the instrument becomes greater as N increases . A reversing key should always be used with ...
... light on the scale is— d∞ ( Q1 - Q2 ) { N − } ( Q1 + Q2 ) } - from which we see that d is more nearly & Q1 - Q2 , and that the sensibility of the instrument becomes greater as N increases . A reversing key should always be used with ...
Page 29
... light to zero . ( 2 ) Close K , and K. , and adjust R B FIG . 14 . R so as to get a deflection of about one - twelfth of the maximum scale - reading . Note this and the value of R , and by means of K1 note the deflection on the other ...
... light to zero . ( 2 ) Close K , and K. , and adjust R B FIG . 14 . R so as to get a deflection of about one - twelfth of the maximum scale - reading . Note this and the value of R , and by means of K1 note the deflection on the other ...
Other editions - View all
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
Popular passages
Page 26 - THE GLACIERS OF THE ALPS : being a Narrative of Excursions and Ascents. An Account of the Origin and Phenomena of Glaciers, and an Exposition of the Physical Principles to which they are related.
Page 26 - Notes of a Course of Nine Lectures on Light, delivered at the Royal Institution. , By John Tyndall, FRS Crown 8vo. is. sewed, or is. 6d. cloth. Notes of a Course of Seven Lectures on Electrical Phenomena and Theories, delivered at the Royal Institution.
Page 13 - Our Place among Infinities: A Series of Essays contrasting our Little Abode in Space and Time with the Infinities Around us.
Page 14 - NATURE STUDIES. By RA PROCTOR, GRANT ALLEN, A. WILSON, T. FOSTER, and E. CLODD.
Page 14 - A NEW STAR ATLAS, for the Library, the School, and the Observatory, in Twelve Circular Maps (with Two Index Plates). Intended as a Companion to 'Webb's Celestial Objects for Common Telescopes.
Page 13 - Other Worlds than Ours ; The Plurality of Worlds Studied under the Light of Recent Scientific Researches.
Page 21 - Schafer. — THE ESSENTIALS OF HISTOLOGY, DESCRIPTIVE AND PRACTICAL. For the use of Students.
Page 26 - ESSAYS ON THE FLOATING MATTER OF THE AIR IN RELATION TO PUTREFACTION AND INFECTION.
Page 2 - Translated from the Russian (Sixth Edition) by GEORGE KAMENSKY, ARSM, of the Imperial Mint, St. Petersburg; and Edited by TA LAWSON, B.Sc., Ph.D., Fellow of the Institute of Chemistry. With 96 Diagrams and Illustrations. 2 vols. 8vo., 361. ME YER.— OUTLINES OF THEORETICAL CHEMISTRY.
Page 22 - A TREATISE ON THE DISEASES OF THE DOG; being a Manual of Canine Pathology. Especially adapted for the use of Veterinary Practitioners and Students. With 88 Illustrations. 8vo., los. 6d. A TREATISE ON THE DISEASES OF THE OX ; being a Manual of Bovine Pathology.