10.1 Kirchhoff’s law and circuits

Question 1

What is Kirchhoff’s first law?

Answer 1

The sum of the current going into a junction is equal to the sum of current coming out of a junction. Charge is conserved (constant).

Question 2

What is Kirchhoff’s second law?

Answer 2

The sum of electromotive force(E.M.F)is equal to the sum of potential difference in a closed loop. The energy is conserved (constant).