Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 43
nt of B about C, or CK x R. When the angleof deflection is small, CK is nearly equal to CP ; and we shalltherefore assume that the moment is measured by R, the 24 Electricity. [Book I. force itself. Hence B is balanced by 40° torsion, togetherwith the earths directive action through 40°, which is… … addition, and you will find the needle at 20°. If B denotethe repulsion, we have R balanced by (2 x 360 + 260 + 20)°= 1000° of torsion and the earths deflective action, which isequal to 20 x 6° = 120° of torsion. .-. #=(1000 + 120)° = 1120° of torsion. Observing that 1120° = 4 x 280°, we conclude…
Electricity
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
