Calculate the resistance of a 5 m long nichrome conductor with a cross-sectional area of 0.75 mm ^ 2?

Initial data: l (length of nichrome conductor) = 5 m; S (cross-sectional area of nichrome conductor) = 0.75 mm ^ 2.

Reference data: ρ (resistivity of nichrome, n.o.) = 1.1 Ohm * mm ^ 2 / m.

The resistance that a nichrome conductor with given parameters will have can be determined by the formula: R = ρ * l / S.

Let’s do the calculation: R = 1.1 * 5 / 0.75 = 7.33 Ohm.

Answer: Nichrome conductor has a resistance of 7.33 ohms.