Interactive practical

Energy stored in a capacitor

Charge an isolated capacitor, read a discharge logger and integrate resistor power over 24 seconds to investigate stored and transferred energy.

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Practice: Energy stored in a capacitor

WJEC 1420QS — this practical matches your selected course; the questions check the method, data handling and practical skills.

Check your answers as you work. For written questions, use the marking points to assess your response.

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2 of 2 available questions match the selected filters. This session contains 2 questions.

Question 1 · 1 mark · Foundation · Practical · Diagnostic

Which graph gives a straight line through the origin for the energy stored in a capacitor?

Question 2 · 3 marks · Standard · Practical · Practical method

Energy stored in a capacitor

Practice: Energy stored in a capacitor

Which graph gives a straight line through the origin for the energy stored in a capacitor?

Explain why the energy stored is \(\dfrac{1}{2}QV\) and not QV.