Answer:
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
Answer:
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Step-by-step explanation:
A1=6*1-12=-6 arithmetic sequence
a14=6*14-12=72
sum =n(a(1)+a(n))/2
sum =14*(-6+72)/2=462