Question

Kirchhoff's first law is given by $\sum I=0$ and Kirchhoff's second law is given by $\sum IR=0$, where the symbols have their usual meanings. Choose the correct option.

• A. Kirchhoff's first law is based on conservation of energy and second law is based on conservation of charge
• B. Kirchhoff's second law is based on the conservation of energy and first law is based on conservation of charge
• C. Both the laws based on the conservation of momentum
• D. First law based on the conservation of momentum and second law on the conservation of charge

Answer 1

The correct option is B Kirchhoff's second law is based on the conservation of energy and first law is based on conservation of charge

Kirchhoff's first law is based on the conservation of charge because sum of current entering to the junction is equal to sum of current leaving the junction. Kirchhoff's second law states that the algebraic sum of potential drops in a closed circuit is zero. So, it is based on the conservation of energy.