IB skill practice

Calculate electrical power and energy transfer

Official-syllabus Physics skill catalogue entry. Seeded skills are activated only after exam-style question templates pass validation.

Paper 1, Paper 2 5 marks Difficulty 3

Power dissipated in a resistor

In a second version of the same investigation, A resistor in a low-voltage lamp circuit carries current \(0.5\,\text{A}\) and has resistance \(20\,\Omega\). Calculate the power dissipated. Use the diagram first, then calculate the requested value. Enter the numerical result and choose the interpretation that matches the physical meaning.

AI writing feedback

How would you answer this question in your own words? The AI will analyse your response and give feedback on reasoning, evidence, and expression.

Login required
0 words