Question

The sum of all potential changes in a closed circuit is zero. This is called ________?

• A. Kirchhoff's first rule
• B. Kirchhoff's fourth rule
• C. Kirchhoff's third rule
• D. Kirchhoff's second rule

Answer 1

Answer:

D. Kirchhoff's second rule

The sum of all potential changes in a closed circuit is zero and this is known as Kirchhoff's second rule (also known as the voltage law). Kirchhoff's second law applies to voltage drops across components in a circuit. It states that around any closed loop in a circuit, the directed sum of potential differences across components is zero.