Electrical measuring instruments : grand prize Louisiana Purchase Exposition, St. Louis, 1904 (1904)
Leeds and Northrup Company · leaf 34
drawn to scale on a sini2;le sheet, showiiifj:the forms. i)ha>e> and rclati\-e amplitudes of the current and electromo- @ N S) ti\-e forces (and also pcrlia]js the ma.unetizalions and power ua\-e.s) whicliare concerned in the operation of a t4i\en machine or s\-tern, we lia\e anelegant… … Kir.. .^ is fre(piently cmi)lo\e(l ( Iig. J). The value of the current, at the urstantthe circuit is closed at M by the contact-maker, may be determined bymeasuring the difference (d i>otential of the terminals AH of a knownresi^t.mce, through which the current flows. The potential difference…
