Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 193
hen a Grenet cell issubstituted the deflection is 31°. What is the relative strength ofcurrent through the solenoid when the Grenet cell is used ? By Formula (51) C == ^-^^^^^ CiX.3, ovQ=\ C, .6 -^ ^ — 2 the Grenet cell current was twice as strong as the current from theDaniell cell. d = 17°, tan d… … .0875 C= 1 ampere, d = 5°, tan d == .0875, d^ = 50°, tan d^ = 1.1918.If a tangent galvanometer is constructed or adjusted so that oneampere deflects the needle 45°, since thetangent of 45° equals one, the value of anyother angle of deflection will represent thevalue of the current in amperes…
Electricity · Magnetism
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