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containing zinc chloride is used as an electrolyte. Zinc chloride being highly hydroscopic, it is added to ammonium chloride in order to keep moistened. The paste of NH,CI and ZnCl, is containd in a small cylindrical zinc vessel, which acts as the negative pole of the cell. A carbon rod fitted with a brass cap is placed in the middle of the zinc vessel. It acts as the positive pole of the cell. The carbon rod is surrounded by a closely packed mixutre of MnO, and charcoal powder in a muslin bag. While the MnO, acts as depolariser, the charcoal powder reduces the internal resistance of the cell by making MnO, electrically conducting. The zinc container and its contexts are sealed at the top with pitch of shellac. A small hole is provided at the top, so as to ammonia gas formed during chemical reaction to help escape the cell. Action. A dry cell is only a modification of a wet Leclanche cell. Therefore, the action of a dry as regards the chemical reactions that take place are same as in case of Leclanche cell.
The dry cells are manufactured in different sizes and shapes to suit particular needs. Irrespection the size of the cell, the e.m.f. of the cell is nearly 1.5 V. Its internal resistance may vary from 0.10 to 10 W. Further, an electric current of about 0.25 A can be continuously drawn from a dry cell.
૨૯. મુનિ યશોવિજયજી, પૂર્વ ઉદ્ધૃત ગ્રંથ, પાનું ૪૩-૪૭
૩૦. એજન, પૃષ્ઠ ૪૭-૫૧
૩૧. (a) આચાર્ય શ્રી મહાપ્રજ્ઞજી, વિદ્યુતઃ સચિત્ત કે અચિત્ત, જૈન ભારતી (માસિક), ડિસેમ્બર, ૨૦૦૨, પૃષ્ઠ ૧૫, ૧૬, ૫૨ ભગવતી ૭/૨૨૯-૨૩૦થી ઉદ્ધૃત –
અચિત્ત પુદ્ગલઃ પ્રકાશ અને તાપ
अत्थि णं भंते! अच्चित्ता वि पोग्गला ओभासंति ? उज्जोवेंति ? adfa? भासेंति ?
हंता अत्थि ।
कयरे णं भंते! ते अच्चिता वि पोग्गला ओभासंति ? उज्जोवेंति ? तवेंति ? पभासेंति ?
कालोदाई ! कुद्धस्स अणगारस्स तेय-लेस्या निसट्ठा समाणी दूरं गता दूरं निपतति, देसं गता देसं निपतति, जहिं जहिं च णं सा निपतति तहिं तहिं च णं ते अचिता वि पोग्गला ओभासंति, उज्जोवेंति,
Jain Educationa International
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