Physics

Problem

At a junction, three of the four branch currents are known:

1.5\,\text{A}

enters,

0.40\,\text{A}

enters, and

0.60\,\text{A}

leaves. What are the magnitude and direction of the fourth branch current

I_4

? a)

0.50\,\text{A}

entering the junction b)

1.3\,\text{A}

entering the junction c)

1.3\,\text{A}

leaving the junction d)

0.90\,\text{A}

leaving the junction