In a loop in a closed circuit, the sum of the currents entering a junction equals the sum of the currents leaving a junction because

a.
the potential of the nearest battery is the potential at the junction.

b.
there are no transformations of energy from one type to another in a circuit loop.

c.
capacitors tend to maintain current through them at a constant value.

d.
current is used up after it leaves a junction.

e.
charge is neither created nor destroyed at a junction.


e

Physics & Space Science

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