What voltage should be applied to a conductor with a resistance of 0.25 Ohm so that there

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

According to Ohm’s law, the current in a conductor will be directly proportional to the effective voltage and inversely proportional to the resistance of the conductor.

I = U / R, where I is the current in the conductor (I = 30 A), U is the voltage applied to the conductor (V), R is the resistance of the conductor (R = 0.25 Ohm).

Let us express and calculate the voltage applied to the conductor:

U = I * R = 30 * 0.25 = 7.5 V.

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