First slide

Kcl

Question

Kirchhoff's first and second laws for electrical circuits are consequences of

Easy

A

conservation of energy
B

conservation of electric charge and energy, respectively
C

conservation of electric charge
D

conservation of energy and electric charge, respectively

Solution

Kirchhoff's first law is junction rule, according to which the algebraic sum of the currents into any junction in zero. The junction rule is based on
conservation of electric charge. Kirchhoff's second law is loop rule according to which the algebraic sum of the potential difference in any loop including those of associated emfs and those of resistive elements must equal zero. This law is basically the law of conservation of energy.

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