APC Exam DU0-001 Topic 2 Question 109 Discussion

Actual exam question for APC's DU0-001 exam

Question #: 109
Topic #: 2

[All DU0-001 Questions]

Given a constant voltage, as the amperage increases, what must happen to the

cross-sectional area of a wire?

AIt needs to be larger.

BIt needs to be smaller.

CIt decreases with the square of the current.

DNothing, since the voltage has not changed.

Show Suggested Answer

Suggested Answer: D

by Kyoko at Mar 21, 2025, 03:15 AM

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Renea

13 days ago

Hmm, this is a tricky one. Let's think about it - if the voltage is constant, the power (voltage x current) must be increasing as the current goes up. That means the cross-sectional area of the wire has to increase to handle the higher current. Gotta go with A on this one.

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Bo

16 days ago

I think the answer is C) It decreases with the square of the current, because the cross-sectional area needs to decrease to maintain a constant voltage.

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Rosina

20 days ago

I agree with Elza, because as the amperage increases, the wire needs to be able to handle more current.

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Elza

24 days ago

A) It needs to be larger.

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