Edexcel IGCSE Physics · Spec 2.13-2.16
Electrical Energy & Power
Electrical energy and power in circuits.
Physics revision video
Electrical Energy & Power
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Spec 2.13-2.16
What you need to know
- Describe electrical power
- Use power equals current times voltage
- Use the energy equations
Active recall
Quick check
Answer each question before opening the answer.
Give two equations for electrical power.
P = I × V and P = I² × R.
What is the equation for electrical energy transferred?
E = I × V × t (or E = P × t).
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