Question

The Kirchhoff’s first law (∑i = 0) and second law (∑iR = ∑E ), where the symbols have their usual meanings, are respectively based on

(a) conservation of charge, conservation of energy
(b)conservation of charge, conservation of momentum
(c) conservation of energy, conservation of charge
(d) conservation of momentum, conservation of charge.

Answer 1

(a) : Kirchhoff's first law [∑i = 0] is based on conservation of charge
Kirchhoff's second law (∑​i R = ∑E) is based on conservation of energy.