Question

A 1.5m wire carries a 6 A current when a potential difference of 70 V is applied. What is the resistance of the wire?

Answer 1

From Ohm's law: R = V / I

Resistance = (voltage) / (current)

Resistance = (70 volts) / (6 Amperes)

Resistance = 11.67 ohms

(We don't need to know the length, thickness, color, or cost of the wire.)