DESCRIPTION :-
• Apparatus for studying the dependence of electrical resistance consists of a device to supply the source of electric current 2-14 V AC / DC 6A, a digital ammeter, a digital voltmeter, 2 pairs of conducting wires, 24 SWG, 2 pairs of conducting wires, 30 SWG2, two pairs of g uide wires with copper wire material 30 SWG, 2 pairs of guide wires with iron material 30 SWG, 2 pairs of guide wires with 4 mm cutting surface and 100cm length in red and black, 2 pairs guide threads with a cutting surface of 4 mm and a length of 50 cm in red and black colors.