Physics for IGCSE & O level - Electricity (Section 10 - No. 19)
If you have a 12V battery and two 6-ohm resistors in series, what is the total resistance?
3 ohms
6 ohms
12 ohms
18 ohms
คำอธิบาย
In a series circuit, resistors add up: 6 ohms + 6 ohms = 12 ohms