\tˈand͡ʒənt ɡˌalvɐnˈɒmɪtə], \tˈandʒənt ɡˌalvɐnˈɒmɪtə], \t_ˈa_n_dʒ_ə_n_t ɡ_ˌa_l_v_ɐ_n_ˈɒ_m_ɪ_t_ə]\
Definitions of TANGENT GALVANOMETER
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A galvanometer consisting of a very short and thick magnetic needle suspended by a thread so as to occupy the center of a vertical ribbon of wire placed in the magnetic meridian. A current passing through the latter causes a deflection of the needle through a certain arc, the tangent of which is proportional to the strength of the current.
By Smith Ely Jelliffe