U = 12 Volts – voltage at the ends of the conductor;
I = 3 A (Ampere) – current in the conductor.
It is necessary to determine R (Ohm) – the resistance of the conductor.
To determine the resistance of a conductor, you must use the following formula (Ohm’s law for a section of a circuit):
U = R * I, from here we get that:
R = U / I = 12/3 = 4 ohms.
Answer: the resistance of the conductor is 4 ohms.
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