Currents Into a Junction#
Part 1#
Can all of the currents going into the junction shown below be positive?

Answer Section#
Yes
No
By Kirchhoff’s junction rule, the sum of the currents flowing into a junction must equal the sum of the currents flowing out of the junction.
Attribution#
Problem is from the OpenStax University Physics Volume 2 textbook, licensed under the CC-BY 4.0 license.