What voltage must be applied to a conductor with a resistance of 0.25 Ohm so that the current in the conductor is 30A?

These tasks: R (resistance of the considered conductor) = 0.25 Ohm; I (current in the conductor under consideration) = 30 A.

To determine the voltage that will need to be applied to the conductor in question, we will use Ohm’s law for a section of the circuit: U = I * R.

Let’s make the calculation: U = 30 * 0.25 = 7.5 V.

Answer: A voltage of 7.5 V must be applied to the conductor.