Kirchhoff's junction rule is a reflection of (a) conservation of cu...

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Kirchhoff's junction rule is a reflection of
(a) conservation of current density vector.
\( \mathrm{P} \)
(b) conservation of charge.
W
(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.
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