PhysicsEasy226×since 2002Q6486The Kirchhoff's first law (∑i=0)\left( {\sum i = 0} \right)(∑i=0) and second law (∑iR=∑E),\left( {\sum iR = \sum E} \right),(∑iR=∑E), where the symbols have their usual meanings, are respectively based onAconservation of charge, conservation of momentumBconservation of energy, conservation of chargeCconservation of momentum, conservation of chargeDconservation of charge, conservation of energyCheck answerSkip