DESCRIPTION : For determining temperature co-efficient resistance of copper, comprising a coil of fine enameled copper wire of about 7-10 ohms resistance, wound non-conductively on an insulating frame and connected to thick copper wire fitted with terminals. The coil is enclosed in a glass tube of borosilicate glass to contain paraffin oil. The rubber stopper is drilled for a thermometer. Tube size approx. 100mm x25mm dia
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Ambala Cantt, Ambala, Haryana