5.3 Connecting resistors

Question 1

Series circuit

Answer 1

Everything is one loop, if one breaks whole circuit stops working. U splits, I stays the same

Question 2

Series formulas

Answer 2

Itot = I1 = I2
Utot = U1 + U2
Rtot = R1 + R2

Question 3

Parallel circuit

Answer 3

separate loops, If one breaks it still works. U stays the same I splits.

Question 4

Parallel formulas

Answer 4

Itot = I1 + I2 + I3
Utot = U1 = U2 = U3
1/Rtot = 1/R1 + 1/R2 + 1/R3