Electric Energy: Consumption and Conservation — Formula Sheet
Kerala Board · Class 10 · Physics
4 formulas from Electric Energy: Consumption and Conservation (Kerala Board Class 10 Physics) on one page, grouped by topic.
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Formulas and Key Relations
Energy Consumption and Measurement
1 unit = 1 kWh = 3.6 × 10⁶ J
Key relations
For electrical appliances
P = I²R = V²/R = VI.
Electrical energy consumed = Power × Time.
Commercial unit is kilowatt-hour (kWh) or 'unit'. 1 kWh = 1000 Wh = 3.6 × 10⁶ J.
Full sheet with units and worked examples
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Sources & Official References
- Kerala Board of Public Examinations — keralapareekshabhavan.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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