11) if a 250-foot #12 copper conductor has a resistance of 0.397 ω, how much is the resistance of the same conductor at 800 feet? (round the final answer to two decimal places.)

Resistance = 1.2704 Ω

Step-by-step explanation:

Resistance of a conductor (R) is directly proportional to the length of the conductor (L)

⇒ R ∝ L

⇒ R = k·L , where k is called proportionality constant

Now, it is given for 250 foot wire , R = 0.397 Ω

⇒ 0.397 = k·250

⇒ k = 0.001588

So, Resistance for 800 foot of same conductor :

Resistance = 0.001588 × 800

⇒ Resistance = 1.2704 Ω

the answer is y=3

hope it helps

pls tell me if I'm wrong