Two wires, iron and copper, of equal length and the same cross-section, are connected in parallel in the circuit.

Two wires, iron and copper, of equal length and the same cross-section, are connected in parallel in the circuit. In which wire will the current be higher?

The current will be higher in the copper wire, because the electrical resistivity of copper is less than that of iron, therefore, with the same length and cross-section, its resistance will be less, which means, according to Ohm’s law, taking into account the fact that with a parallel connection the voltage on the wires is the same, more current will flow through the copper wire.