There are several factors that must be considered when designing and sizing electrical conductors. Based on the sizing factors, evaluate the follow...
There are several factors that must be considered when designing and sizing electrical conductors. Based on the sizing factors, evaluate the following assertions and the proposed relationship between them: I- It is necessary to know the factors that influence the conductor temperature, such as ambient temperature and ventilation. BECAUSE II- Temperature affects the conductor resistance and, therefore, its energy loss. Choose the CORRECT alternative:
I- It is necessary to know the factors that influence the conductor temperature, such as ambient temperature and ventilation.
II- Temperature affects the conductor resistance and, therefore, its energy loss.
A The first assertion is false, and the second is true.
B The first assertion is true, and the second is false.
C Both assertions are true, and the second is a correct justification of the first.
D Both assertions are true, but the second is not a correct justification of the first.
I- It is necessary to know the factors that influence the conductor temperature, such as ambient temperature and ventilation.
II- Temperature affects the conductor resistance and, therefore, its energy loss.
A The first assertion is false, and the second is true.
B The first assertion is true, and the second is false.
C Both assertions are true, and the second is a correct justification of the first.
D Both assertions are true, but the second is not a correct justification of the first.
💡 1 Resposta
Ed 
A resposta correta é a alternativa C: "Both assertions are true, and the second is a correct justification of the first." (Ambas as afirmações são verdadeiras, e a segunda é uma justificativa correta da primeira). Isso ocorre porque, ao projetar e dimensionar condutores elétricos, é necessário levar em consideração os fatores que influenciam a temperatura do condutor, como a temperatura ambiente e a ventilação. Além disso, a temperatura afeta a resistência do condutor e, consequentemente, sua perda de energia.
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