When the current in a small heating element is 0.25 A, the resistance of the element is 48 Ω.
Calculate the potential difference across the heating element.
Use the equation:
potential difference=current×resistance \text{potential difference} = \text{current} \times \text{resistance} potential difference=current×resistance59 exam-style questions on Edexcel GCSE Physics 10.2 Resistance. Each one has a worked solution and a mark scheme showing where the marks go.