Gage, Alfred P. (Alfred Payson), 1836-1903, Fessenden, C · Toronto : W.J. Gage · leaf 240
p a, about30< in diameter, which terminates in the wires ww; and these are con-nected with the battery whose current is to be measured. A circularcard-board cc, containing a circle divided to degrees to indicate theextent of deflection, is placed beneath the needle. The ring beingplaced so that…
Physics
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