The Galvanometer: A Series of Lectures

accuracy amperes angle applied approximate arrangement astatic pair axis ballistic galvanometer bolometer calibration carbon cell circuit circular Clark cell compensated resistance component consists constant constructed copper copper wire Cornell University correction curve damping delicacy diameter distance earth inductor earth's magnetic earth's magnetic field electric electromotive force elongation expression fibre figure of merit fluctuations galvano heat inertia instru instrument Kohlrausch length magnetic field magnetic moment magnetometer means measurement ment metal meter method mirror moment of inertia mounted nearly number of turns obtained permanent deflection placed plane pole quantity quartz radius readings reduced sensitive galvanometer shown in Fig shunt resistance sin² strength strips subsidiary coil suspended suspension wire swinging coil tangent galvanometer telescope temperature coefficient temperature coil thermo-element tion torsion vanometer vertical Wilhelm Weber