# Kirchhoff ’s junction rule is a reflection of A. conservation of current density vector. B. conservation of charge. C. the fact that the momentum with which a charged particle approaches a junction is unchanged (as a vector) as the charged particle leaves the junction. D. the fact that there is no accumulation of charges at a junction.

The correct answers are the options (b,d)

Explanation: According to the law of conservation of charges, the charge of a system will stay constant. From this, it can be derived that net charge flowing into a junction is equal to the net charge going out of the system.

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