Choosing the Correct Cu Wire Size for a 20 Amp Breaker

What is the correct Cu wire size for a 20 amp breaker?

a. 12
b. 14
c. 10
d. 16

Final answer: The correct Cu wire size for a 20 amp breaker is option c. 10.

Answer:

The correct Cu wire size for a 20 amp breaker is option c. 10.

When choosing the wire size for a circuit, it is important to consider the current-carrying capacity of the wire. The larger the wire diameter (or gauge), the greater the current it can carry. A 10-gauge wire has a larger diameter than a 12-gauge or 14-gauge wire, making it suitable for a 20 amp breaker.

In this case, a 20 amp breaker would require a wire size that can safely carry 20 amps of current, which is why option c, 10-gauge wire, is the correct choice.

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