ExamPlay Light Logo
サインイン

Physics for IGCSE & O level - Electricity (Section 4 - No. 20)

If a 12V battery supplies current to a 4-ohm resistor, how much current flows through the resistor?
3A
6A
12A
48A

説明

Using Ohm's Law (I = V/R), current = 12V / 4 ohms = 3A.

コメント (0)

広告