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Experimental work on Ohm's Law to demonstrate that in an electrical circuit with a resistance of 1 OHM, a voltage of 1 VOLT, originates a current of 1 AMPERE. Applying R = V / I the result will always be 1 in each magnitude. Design of a 1 Ohm resistor with nichrome wire. A circuit with a DC power source and measurements by means of multimeters in function of VOLTMETER, AMMETER and OHMMETER. Excellent good result.