A resistor and a battery are connected in series. The value of the resistor is 50 Ω. The potential difference (p.d.) of the battery is 12 V. What is the current in the resistor?
0.24 A0.24\text{ A}0.24 A
4.2 A4.2\text{ A}4.2 A
12 A12\text{ A}12 A
600 A600\text{ A}600 A
132 exam-style questions on CIE IGCSE Physics 4.2.4a Resistance. Each one has a worked solution and a mark scheme showing where the marks go.