To study the variation of the thermoelectric e.m.f. with temperature for a copper-iron thermo-couple by means of a potentiometer and (i) to determine the neutral temperature (ii) melting point of naphthalene.
Apparatus Required:Potentiometer, standard cadmium cell, battery, copper iron, thermo couple, high resistance box, rheostat, one way key two way and connection wires or box set uo with power supply digital
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