ch 9 - kirchhoff's laws

Question 1

kirchhoff’s first law

Answer 1

sum of currents entering any point in a circuit is equal to sum of the currents leaving that same point

CHARGE IS CONSERVED

sum of I in = sum of I out

Question 2

conservation of charge

Answer 2

charge can’t be created or destroyed

Question 3

kirchhoff’s second law

Answer 3

the sum of the emf around any loop in a circuit is equal to the sum of the p. d. s around the loop

ENERGY IS CONSERVED

sum of emfs = sum of voltage

Question 4

resistors in series and parallel formula

Answer 4

series - R = R1 + R2…
parallel - 1/R = 1/R1 + 1/R2…