Question

L=2.5 km
R=0.5mm
Rhi=2.7*10 ^-8
Find resistance

Answer 1

HEYA GM ❤

WE KNOW THAT ;

★ RESISTANCE = Rho × length / Area

» rho = 27 × 10^-9

» Area = π R² = 3.14 × ( 5 × 10-⁴ )²

» Area = π R² = 3.14 × ( 5 × 10-⁴ )²= 78.5 × 10^-8

» Length = 2.5Km = 25 × 10⁴ m

# Now ;

R = 27 × 10^-9 × ( 25 × 10⁴ / 78.5 ×10^-8 )

R = 27 × 10^-9 × 3.14 × 10^¹²

R = 84.78 × 10³ Ω

Hence ;

Resistance is Equal to 84.78 KΩ

TQ ❤ ❤