Inside Out Library
Practical applied electricity; a book in plain English, for the practical man. Theory, practical applications and examples (1911)
Moreton, David Penn, 1882- · Chicago, The Reilly & Britton co · leaf 324
t- CO X © CM Tf CO X ©THrHrHrHrHCMCMCMCMCMM ELECTKIC LIGHTING 313 The illumination of i^ toot-candle on the surface (P) is tobe distributed over a larger area when the horizontal planeis considered. The ratio of the illumination per unit of areaon the horizontal plane to the il-lumination per unit… … Fig. 253 the angle between the plane (P) and the horizontal plane,which is the same as the angle between (I) and a verticalline through the lamp. The constants by which the intensityin candle-power along the line (0 must be multiplied toobtain the illumination on the horizontal for different…Electrical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
More pictures from Practical applied electricity; a book in plain English, for the practical man. Theory, practical applications and examples
More like this
