Skip to content

Power & Electrical Energy

This section is power and electrical energy in circuits: **P=W/ΔtP=W/\Delta t, the working formsP=VIP=VI,P=I2RP=I^{2}R,P=V2/RP=V^{2}/R, energyW=PtW=Pt(andW=VIΔtW=VI\Delta tfamily), units watt (W) and joule (J), plus kWh as a practical energy…

Sign up free to read this section

Create a free Hlayiso account to read the full Electric circuits notes for Grade 11 Physical Sciences.

Sign up free

Common questions

Can’t find your answer? Contact us

What will I learn in "Power & Electrical Energy"?

This section covers Power & Electrical Energy as part of Electric circuits in Grade 11 Physical Sciences. You'll find clear explanations, worked examples, and key definitions aligned to the CAPS curriculum.

Is this section aligned with the CAPS curriculum?

Yes. All notes on Hlayiso, including "Power & Electrical Energy", are written against the official CAPS curriculum and ATP for Grade 11 Physical Sciences.

What should I study after "Power & Electrical Energy"?

Continue with the next section in Electric circuits, or test your understanding with the interactive quiz linked to this section.

Practise Power & Electrical Energy with quizzes and flashcards

Create a free account to practise Grade 11 Physical Sciences and track your progress.

Start free
Download on the App StoreGet it on Google Play
Free plan available. Paid plans from R49 a month.