determine the resistance of a copper wire having a length of 1 km and

1.	determine the resistance of a copper wire having a length of 1 km and diameter 0.5 mm Plz answer this...
Answer» ANSWER: R = 85 $\omega$ EXPLANATION: Given: Length = L= 1km= 1000m Diameter = D= 0.5mm = 5 × 10^-4 m Radius = R = 2.5 × 10^-4 m Area = A = 22/7 × (2.5 × 10^-4)² Formula: R = (resistivity × length)/Area of cross section R = (1.72 × 10^-8 × 1000)/ 22/7 × 6.25 × 10^-8 R = (1.72 × 7000/22 × 6.25) ohm R = 85 ohm hope HELPFUL ❤

determine the resistance of a copper wire having a length of 1 km and diameter 0.5 mm Plz answer this...

Answer»

ANSWER:

R = 85 $\omega$

EXPLANATION:

Given:

Length = L= 1km= 1000m

Diameter = D= 0.5mm = 5 × 10^-4 m

Radius = R = 2.5 × 10^-4 m

Area = A = 22/7 × (2.5 × 10^-4)²

Formula:

R = (resistivity × length)/Area of cross section

R = (1.72 × 10^-8 × 1000)/ 22/7 × 6.25 × 10^-8

R = (1.72 × 7000/22 × 6.25) ohm

R = 85 ohm

hope HELPFUL ❤

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determine the resistance of a copper wire having a length of 1 km and diameter 0.5 mm Plz answer this...

R = (resistivity × length)/Area of cross section

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