Physics, asked by shivagazlawar, 2 months ago

Q.26 : A 10m long wire bas diameter 0.3 m its resistance is 100Ω. Find the resistivity and

conductivity.​

Answers

Answered by ashir01
0

Answer:

resistivity= 0.70685 (ohm-meter)

Explanation:

resistivity = (resistance × area of cross section) ÷ (length)

Answered by ruhaanmalik627
0

Explanation:

diameter= 0.3m

so radius= r = 0.15m

l = 10m

R = 100 ohm

by the formula R= ρl/A

=> ρ = RA/l = 100 ×π (0.15)² ÷ 10

= 100 × 3.14 × 0.0225 ÷10

= 0.7065 ohm-m

σ = 1/ρ

= 1.415

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