Three wires meet at a junction. Wire $1$ has a current of $0\mathrm{.}40$ AA into the junction. The current of wire $2$ is $0\mathrm{.}67$ AA out of the junction.

Part A

What is the magnitude of the current in wire $3?$

Express your answer in amperes.

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II $=$

nothing

AA

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Part B

Does the current in wire $3$ go into or out of the junction?

Into the junction.Out of the junction.