Physics for IGCSE & O level - Electricity (Section 12 - No. 23)
What is the total resistance of two resistors (6 ohms and 12 ohms) connected in series?
2 ohms
6 ohms
12 ohms
18 ohms
Giải thích
In a series circuit, add the resistances: 6 + 12 = 18 ohms