Question

Electrical resistance of nichrome 100×10^-6 ohm metre.calculate the resistance of nichrome wire 110cm long and 0.5mm diameter​

Answer 1

Answer:

R = ρ L/A

Explanation:

ρ = 100 x 10⁻⁶ Ωm

L = 110 cm = 1.1 m

r = 0.5 mm

area = π r² = 3.14 * 0.5² * 10⁻⁶

R = 100 * 10⁻⁶ * 1.1 / ( 3.14*0.5²* 10⁻⁶)

R = 140.12 Ω